Synthesis catalytic reactions. Medical search. Frequent questions

This work describes the synthesis of ruthenium(IV) m-oxo porphyrin complexes of general formula [RuIV(TPP)(X)]2O which have been applied as catalysts in nitrene transfer reactions using aryl azides (ArN3) as nitrene sources. (unimore.it)
The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts using copper salts as reagents or catalysts. (wikipedia.org)
Here, the oxygen evolution reaction (OER) has broad applications in electrochemical devices, but it often requires expensive and scarce Ir-based catalysts in acid electrolyte. (osti.gov)
Eager to understand the basis of this unexpected reactivity, scientists have recently turned their efforts to elucidating the elementary steps that make up reaction mechanisms on the surfaces of gold catalysts. (acs.org)
Here, we report that catalytic single-site Co in a well-defined brookite TiO 2 nanorod (210) surface (Co-TiO 2 ) presents turnover frequencies that are among the highest for Co-based heterogeneous catalysts reported to date, reaching 6.6 ± 1.2 and 181.4 ± 28 s −1 at 300 and 400 mV overpotentials, respectively. (nature.com)
The thermal stability, air and moisture insensitivity and ease of handling and synthesis have made them viable alternatives to phosphine/carbene based Pd-catalysts. (rsc.org)
At its core lies the versatility of complexes of zinc, magnesium, calcium, strontium and barium (the so-called bio-metals): green catalysts able to perform both the polymerisation of cyclic esters and highly atom-efficient hydroelementation reactions will be designed. (europa.eu)
Specific catalysts are stereoselective and are often able to react at selected reaction sites, reducing the prospect of unwanted side reactions. (matthey.com)
We work closely with our customers to make sure the reaction process and catalysts are right for them. (matthey.com)
We specialize in gas-phase reaction using proprietary catalysts, as well as our advanced R&D capabilities, to become a manufacturer specializing in gas-phase reactions driven by advanced technology. (koeichem.com)
Catalytic systems being developed include transition metal catalysts (including methods to prevent coarsening of nanoparticles at higher temperatures) and zeolite templated materials. (montana.edu)
In particular, her group is interested in homogeneous transition metal catalysts for achieving highly selective or unusual reactions. (montana.edu)
Research areas include catalyst-controlled chemoselectivity in cross-coupling reactions and developing catalysts that can functionalize methane by new mechanistic pathways. (montana.edu)
Metal nanoparticles have proven to be the excellent catalysts for inorganic synthesis, pollution treatments and fuel cell, due to their quantum effect, high surface-tovolume ratio and surface energy [ 14 - 16 ]. (omicsonline.org)
Supramolecular catalysis, the use of non-covalent forces to affect a catalytic process, can afford the catalyst diversity required to uncover efficient catalysts and further our understanding. (unl.edu)
His goal is to understand the structural properties of catalysts during synthesis and when are working under real conditions, establishing relationships between material structure and catalytic performance/deactivation. (edu.sa)
With the tuning of the catalysts' steric and electronic properties, sophisticated reactions have been discovered, sometimes featuring several individual steps and resulting in one-pot formation of complex chemical structures with high atom-economy. (eurekaselect.com)
Knölker type iron complexes, used directly or generated in situ, are suitable catalysts for (de)hydrogenation reactions enabling the synthesis of carbonyl derivatives, amines and alcohols of industrial and academic interest. (eurekaselect.com)
Knölker type complexes were also competent catalysts for sequential reactions based on temporary dehydrogenative alcohol activation including dynamic kinetic resolution of racemic secondary alcohols (99% e.e.) and borrowing hydrogen methodology. (eurekaselect.com)
Properties of catalysts prepared from intermetallic compound precursors were investigated by the Bureau of Mines as part of its mission to decrease U.S. dependence on foreign sources for scarce catalytic materials, such as nickel , cobalt, and chromium. (cdc.gov)
Activity of these catalysts for the methanation reaction and methanol synthesis was determined using a fixed-bed, single-pass, flow-through reactor. (cdc.gov)
Under identical reaction conditions, catalysts prepared from thorium- copper intermetallics produced more than 10 times as much methanol as a commercial low-pressure catalyst and exhibited a high degree of catalytic stability. (cdc.gov)

Finally, selective modifications of functional groups in HAH were investigated by catalytic etherification, reduction, and dimerization to demonstrate the possibility of applications as monomers in organic dyes and polyethers. (aiche.org)
Another use of the Sandmeyer reaction is for cyanation which allows for the formation of benzonitriles, an important class of organic compounds. (wikipedia.org)
Indeed, the direct single-step synthesis of complex alkaloid frameworks remains an unresolved problem at the heart of organic chemistry in spite of the tremendous progress of the discipline. (nature.com)
Contemporary organic synthesis aims to further our understanding of nature by developing laboratory routes to molecules that mimic those produced by living organisms with ever-increasing levels of complexity. (nature.com)
Copper chloride may be used as a catalyst in organic chlorination reactions. (sigmaaldrich.com)
Her research interests include the total synthesis of bioactive natural products and the development of new methodologies in organic chemistry. (rsc.org)
Throughout her research Matilda has been an advocate for organic synthesis and its lynchpin role in the success of drug discovery programmes. (rsc.org)
In addition to the above facilities, we have large and small liquid-phase plants for organic synthesis. (koeichem.com)
In addition to standard organic, organometallic, and inorganic chemistry lab techniques, we also use computational tools to gain insight into the structure and reactivity of catalytic systems. (montana.edu)
His research interests lie in the design and mechanistic understanding of new catalytic reactions for organic synthesis. (soci.org)
In: Trost BM, Flemming I (chief eds), Ley SV (vol ed) Comprehensive organic synthesis. (springer.com)
1) a novel synthesis pathway of silica-sodalite via 2-D crystalline precursor without hydrothermal treatment, 2) a method to use a highly amphiphilic molecule as a structure-directing agent in a pure-silica zeolite synthesis, 3) a seeding method to reduce the use of an organic structure-directing agent in the synthesis of UZM-4 zeolite, and 4) a general methodology to synthesize high-silica zeolites in fluoride media. (confex.com)
Nanoformulated calix[8]arenes functionalized with N -heterocyclic carbene (NHC)-palladium complexes were found to be efficient nano-reactors for Suzuki-Miyaura cross-coupling reactions of water soluble iodo- and bromoaryl compounds with cyclic triol arylborates at low temperature in water without any organic co-solvent. (mdpi.com)
Over the few decades, photochemistry has received great attention and become a powerful tool in organic synthesis. (rsc.org)
Atta-ur- Rahman , " Advances in Organic Synthesis ", Bentham Science Publishers (2018). (eurekaselect.com)
The focus of our research efforts is efficiency in organic synthesis and various aspects of this can be readily identified. (lu.se)
We are mainly interested in developing new methodology in organic synthesis with the intention of applying the chemistry for the total synthesis of natural products. (lu.se)

Gold nanoparticles decorated with oxygen atoms (red) catalyze the reaction of benzeneacetaldehyde (left) with methoxy intermediates to form the methyl ester (right). (acs.org)
The polyol synthesis is a well-established method to form so-called "surfactant-free" nanoparticles (NPs). (mdpi.com)
Prasad CH, Srinivasulu K, Venkateswarlu P (2015) Catalytic Reduction of 4-Nitrophenol Using Biogenic Silver Nanoparticles Derived from Papaya ( Carica papaya ) Peel extract. (omicsonline.org)
A facile and green method is described for the synthesis of Silver (Ag) nanoparticles (NPs) from the extract of Papaya Peel as capping and reducing agent. (omicsonline.org)
The researchers screened many potential peptides showing catalytic behavior for the synthesis of gold nanoparticles before settling on the B3 peptide. (materialstoday.com)
We explore both physical and chemical synthesis methods for generating nanoparticles, nanowires, and nano-layers. (lu.se)
Semiconducting, magnetic or catalytic nanoparticles as building blocks. (lu.se)

It is also aimed at those in academia, particularly graduates and post-graduates with a background in synthesis and catalysis. (soci.org)
This review describes state-of-the-art approaches such as heterogeneous catalysis, microwave synthesis and microbial transformations for steroid synthesis. (springer.com)
Perhaps most surprisingly, the presence of a chiral recognition element positioned remote to the site of catalysis can significantly impact the catalytic activity and enantioselectivity. (unl.edu)
19, 2023 Transition metals exchange electrons with supporting ligands to form complexes that facilitate reaction catalysis in several industries, like pharmaceutical production. (sciencedaily.com)
As a useful and abundant one-carbon building block, carbon monoxide has found extensive use in the synthesis of complex molecules owing to its high reactivity under transition metal catalysis and the ease of incorporation of carbonyl functionality. (purdue.edu)
This reaction was developed following the exploration of the reactivity of hydroxycyclopropanols under palladium catalysis and carbon monoxide atmosphere. (purdue.edu)
Catalysis has played a prominent role in recent decades allowing chemists to develop novel and efficient reactions in almost every class of chemical transformation. (eurekaselect.com)

The proposed processes with catalytic reaction routes can achieve effective control over functional groups in biomass and provide a facile approach to supply renewable high-value chemicals. (aiche.org)
However, since these processes do not require a metal catalyst, they are not usually referred to as Sandmeyer reactions. (wikipedia.org)
By uncovering details of these chemical sequences, scientists aim to gain insights that can lead to a predictive model for fine-tuning, and possibly commercializing, gold-driven catalytic processes. (acs.org)
Continuous reaction processes work by applying a constant flow of raw reagents while simultaneously removing products. (matthey.com)
The demand for green and sustainable chemistry has fostered for the development of new reactions and chemical processes in steroidal chemistry. (springer.com)
Therefore, having a broad understanding of this field is essential for developing a novel catalytic processes. (confex.com)
A strong emphasis is placed on unravelling the chemistry and kinetics behind chemical processes, such as catalyst synthesis, catalytic reactions and catalyst deactivation. (edu.sa)
Dr Christina Wegeberg is an experimental chemist with a strong passion for understanding the mechanistic behavior of molecular complexes in light-induced catalytic processes. (lu.se)

One recent process development we worked on through a collaborative development agreement with Snapdragon Chemistry Inc involved the integration of continuous reaction pathways into API synthesis. (matthey.com)

Asymmetric heck reaction-anion capture process. (elsevierpure.com)
A catalytic asymmetric synthesis of the key intermediates 4 and 15 for the capnellenols has been achieved through an asymmetric Heck reaction followed by the acetate anion capture process. (elsevierpure.com)
Furthermore, the above reaction has been successfully applied to an asymmetric Heck reaction -amine capture process. (elsevierpure.com)
Dive into the research topics of 'Asymmetric heck reaction-anion capture process. (elsevierpure.com)
Catalytic asymmetric synthesis of di(allyl) ethers followed by an olefin isomerization-Claisen rearrangement (ICR) reaction provides a convenient, two-step route to asymmetric aliphatic Claisen rearrangements from easily obtained starting materials. (organic-chemistry.org)
Title: "New Catalytic Methods for Pauson-Khand Reactions, Isomerizations and Asymmetric Hydrogenations. (irbbarcelona.org)
Asymmetric Synthesis;B (Classes of Boron Compounds);B-Bromocatecholborane, etc. (lookchem.com)
Asymmetric synthesis of α-chiral hydroxyalkylphosphines via a catalytic, enantioselective reduction of acylphosphines. (lookchem.com)
1,1-Disubstituted alkenes are a challenging class of substrates for the asymmetric hydroboration reaction. (unl.edu)
For example, the yield of a given reaction, its environmental friendliness and cost efficiency, if it can be converted into a catalytic process or, alternatively, into an asymmetric one are all important issues that have to be considered when choosing a suitable reaction for affecting a desired transformation. (lu.se)

Upon subjection to a unique dual-catalytic system, the transient intermediates undergo an unusual hydride shuttle process that is initiated by a hydride donation event. (nature.com)
The texts concern the qualitative and quantitative composition of medicines, the tests to be carried out on medicines, on the raw materials used in the production of medicines and on the intermediates of synthesis. (lu.se)

1980). Because methanol is manufactured from synthesis gas, usually produced from methane, there have been extensive efforts to develop a one-step process that partially oxidizes methane to formaldehyde. (cdc.gov)

Other applications include the enantioselective synthesis of α-hydroxy acids, α-amino acids, C2 symmetrical ferrocenyl diols, and propargyl alcohols. (lookchem.com)
Cichowicz NR, Kaplan W, Khomutnyk Y, Bhattarai B, Sun Z, Nagorny P (2015) Concise enantioselective synthesis of oxygenated steroids via sequential copper(II)-catalyzed michael addition/intramolecular aldol cyclization reactions. (springer.com)

An efficient reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of Ag NPs and NaBH4 was observed and was found to depend upon the nanoparticle size or the peel extract concentration used for synthesis. (omicsonline.org)

Finally, the performance of complexes 3 and 5 were studied on Suzuki-Miyaura reactions of phenylboronic acid with aryl bromides. (omu.edu.tr)
Heck cross coupling reactions have been catalyzed with several palladium( II )-complexes of organochalcogen ligands. (rsc.org)
This review covers developments from the design of organochalcogen ligands and their palladium( II )-complexes to the applications of these complexes in catalyzing Heck reactions. (rsc.org)
Synthesis of well-defined complexes of the large alkaline-earth (Ca, Sr, Ba). (europa.eu)
Use of these complexes for the catalytic immortal ring-opening polymerisation of cyclic monomers derived from renewable bioresources for the production of biocompatible and/or biodegradable polymers. (europa.eu)
Study of the stability and reactivity of the targeted heteroleptic complexes by theoretical calculations: the design of catalytic systems will be elaborated and/or optimized according to preliminary calculations or those based on experimental structural data. (europa.eu)
The reaction of (1) with Co(NO 3 ) 2 ·6H 2 O and CuCl 2 ·2H 2 O in methanol afforded the corresponding metal complexes. (scirp.org)
These metal complexes can be used in catalytic reactions and as models for biological systems. (scirp.org)
The reaction of the Schiff base ligand with Co(II) and Cu (II) salts in methanol affords the [CoL] and [ClCuHL] complexes. (scirp.org)
Development, synthesis and characterization of luminescent complexes based on Earth-abundant transition metals. (lu.se)

I want to get the latest chemistry news from C&EN in my inbox every week. (acs.org)
In chemistry, many different reactions can lead to the same structure. (matthey.com)
In May 2020 she joined the Department of Chemistry at Imperial College London, where she now serves on the management team for the EPSRC Centre for Rapid Online Analysis of Reactions (ROAR), the management board for ATLAS - a new high-throughput automation facility for accelerated materials research, and she is one of the automation leads in the newly launched Institute for Digital Molecular Design and Fabrication (DigiFAB). (soci.org)
His research projects involve the study of chemical reactions, such as C1 chemistry, selective hydrogenation, and halogen chemistry for the activation and production of chemicals. (edu.sa)
With the increasing recognition of the importance of green and sustainable chemistry, the concept of step-economy has gained traction and one-pot multistep reactions have been developed. (eurekaselect.com)
Reaxys enables you to search by structure, substructure, reaction, text, and property data.Being based on the CrossFire Beilstein, CrossFire Gmelin and Patent Chemistry databases Reaxys has a long history beginning with chemical data from 1771. (lu.se)
SciFinder-N provides access to the world's most comprehensive and authoritative source of references, substances and reactions in chemistry, chemical engineering, food, biomedicine and related sciences. (lu.se)

The first part of my poster will focus on the catalyst synthesis, especially on microporous materials synthesis. (confex.com)

The synthesis of (+)-curcuphenol, a bioactive compound that displays antifungal and anticancer activity, employs the Sandmeyer reaction to substitute an amine group by a bromo group. (wikipedia.org)
The higher activity of acetate in the C-Si bond activation and the selective Fe-catalyzed activation of the allylic acetate are prerequisites for this unprecedented three-component coupling reaction. (acs.org)
JM's Nick Shackley discusses advanced catalytic activity, combining technologies with collaborations and more. (matthey.com)
This review, therefore, seeks to uncover the mechanism of electrochemical reduction of CO2 on Cu/Cu based electrodes, factors that affect catalytic activity and selectivity for these electrodes as reported in the various literature. (magiran.com)
Furthermore, the catalytic activity of synthesized Ag NPs in the reduction of 4-nitrophenol (4-NP) was studied by UVvis absorption spectroscopy . (omicsonline.org)
The synthesized Ag NPs have a good catalytic activity on the reduction of 4-nitrophenol (4-NP) by Papaya Peel extract which is confirmed by the decrease in absorbance maximum values of 4-nitrophenol (4-NP) with respect to time using UV-vis absorption spectroscopy. (omicsonline.org)
The preparation procedures, the factor of each materials (surface structure, active sites, and so on), and the catalytic activity are closely connected. (confex.com)
In addition, the h-Ca3 CrN3 H exhibited stable ammonia synthesis activity when used as a catalyst. (bvsalud.org)
Warfarin inhibits the activity of vitamin K epoxide reductase and prevents recycling of vitamin K back to the reduced form, thus interfering with the synthesis of factor VII and other vitamin K-dependent factors. (medscape.com)
We are also determining the structure of other class III RNRs which have overall activity regulation (the T4 enzyme does not), as well as of mutants of the T4 RNR which affect the catalytic mechanism and the allosteric regulation. (lu.se)

A key intermediate in the synthesis of the antipsychotic drug Fluanxol is synthesized by a cyanation through the Sandmeyer reaction. (wikipedia.org)
Discoveries by both Cech and Altman overturned the notion that RNA is merely a genetic messenger - an intermediate in the synthesis of proteins from DNA. (todayinsci.com)

However, the structural complexity of heterogeneous electrocatalysts makes it a great challenge to elucidate the surface catalytic sites and OER mechanisms. (nature.com)

The rapid assembly of complex scaffolds in a single step from simple precursors identifies as an ideal reaction in terms of efficiency and sustainability. (nature.com)
Owing to the extreme oxophilic nature of these elements, these catalytic precursors are expected to display excellent activities. (europa.eu)
In our synthesis route, FeCl3 and FeCl2 were employed as precursors to synthesize γ-Fe2O3NPs. (magiran.com)

H Involving a Rotational Structural Transformation for Catalytic Ammonia Synthesis. (bvsalud.org)
Here we report a topochemical synthesis of a hexagonal nitride hydride, h-Ca3 CrN3 H, by heating an orthorhombic nitride, o-Ca3 CrN3 , under hydrogen at 673â K, accompanied by a rotational structural transformation. (bvsalud.org)

Based on grand canonical quantum mechanics calculations and the single-site Co atomic structure validated by in situ and ex situ spectroscopic probes, we have established a full description of the catalytic reaction kinetics for Co-TiO 2 as a function of applied potential, revealing an adsorbate evolution mechanism for the OER. (nature.com)

Sandmeyer-type trifluoromethylation reactions feature mild reaction conditions and greater functional group tolerance relative to earlier methods of trifluoromethylation. (wikipedia.org)
All suggested methods allows to prepare catalytic active VPO phases with nanosized crystallites (nanodots). (science24.com)

In the early 1960s, Smith became involved in unravelling the process whereby the sequence of bases in DNA determines the assembly of the different amino acid sequences of proteins which are responsible for all our bodily functions (structural, enzymatic, hormonal, and so on), a process known as protein synthesis. (todayinsci.com)
These readily undergo iron-catalyzed secondary free radical reactions leading to truncated products which retain the signature PE headgroup and which can readily react with nucleophilic moieties in proteins via their truncated electrophilic acyl chains. (cdc.gov)

Due to its wide synthetic applicability, the Sandmeyer reaction, along with other transformations of diazonium compounds, is complementary to electrophilic aromatic substitution. (wikipedia.org)
It has been demonstrated that Sandmeyer-type reactions can be used to generate aryl compounds functionalized by trifluoromethyl substituent groups. (wikipedia.org)
Experimental details of the synthesis and analytical data of compounds 5 , 6 , and 8 , 1 H and 13 C NMR spectra of compounds 5 , 6 , and 8 . (beilstein-journals.org)
Schema 1 below is a typical use of a gas-phase reaction to produce nitrogen-containing heterocyclic compounds (pyridine bases, pyrazines, pyrroles), and Schema 2 describes a process of ammoxidation. (koeichem.com)
Research in the Neufeldt group targets the design, optimization, and understanding of catalytic systems for transforming small molecules into value-added compounds such as sequence-controlled polymers and fuels. (montana.edu)

He then spent two years as a postdoctoral research associate with Professor Scott E. Denmark at the University of Illinois at Urbana-Champaign, USA, working on iron-catalysed cross-coupling of alkylsulfur electrophiles and the first catalytic, syn-dichlorination of alkenes. (soci.org)

Steroids are important scaffolds for the synthesis of molecules of pharmaceutical interest and constitute a distinct family of natural products. (springer.com)

In this chapter, we review a selection of examples of catalytic tandem reactions triggered by the introduction of a carbonyl function either formed by oxidation of alcohols, hydroformylation, isomerisation or carbonylation. (eurekaselect.com)
1980). During the decades following World War II, approximately 20% of the production volume in the United States was manufactured by vapor phase, non-catalytic oxidation of propane and butane (Gerberich et al. (cdc.gov)

FLEXCHX was a three-year project (2018-2021), which developed a flexible and integrated hybrid process combining electrolysis of water with gasification of biomass and catalytic liquefaction. (europa.eu)

The solvent of choice for the synthesis of iodoarenes is diiodomethane, while for the synthesis of bromoarenes, bromoform is used. (wikipedia.org)
For the synthesis of chloroarenes, chloroform is the solvent of choice. (wikipedia.org)
An environmentally benign solvent and eco-friendly capping and reducing agents are the three fundamental elements for a completely green synthesis technique. (omicsonline.org)

Used with palladium in a catalytic synthesis of 3-haloindoles via an annulation process. (sigmaaldrich.com)

Collected data indicated that the catalytic efficiency of [RuIV(TPP)(OCH3)]2O was comparable to that of RuII(TPP)CO because of their analogous reactivity towards aryl azides to give the same catalytically active bis-imido species RuVI(TPP)(ArN)2. (unimore.it)
The synthetic scope and efficiency of the reaction was explored and the method was applied in the expedient total syntheses of two natural products, α-levantanolide and α-levantenolide. (purdue.edu)

The Stadie group explores new synthesis routes toward structurally and chemically tunable carbon-based materials with a chief interest in their application for energy storage. (montana.edu)
However, current synthesis routes for these structures, including nanoplates, rely on highly toxic surfactants to control the morphology, which must be removed before use. (materialstoday.com)

APIs are complex structures, typically containing multiple chiral centres, and synthesis requires many precise stereoselective reactions. (matthey.com)
On-surface synthesis provides a route for the production of 1D and 2D covalently bonded polymeric structures. (nottingham.ac.uk)

We have developed an effective process to produce the HMF from glucose by combining catalytic reactions and Simulated-Moving-Bed (SMB) separation. (aiche.org)
The first task in any drug development process is the API synthesis. (matthey.com)
In fact, it is possible that a month-long batch process could be shortened to just a single day using continuous manufacture technology and continually removing the API product reduces the opportunities for unwanted side-reactions to occur, whilst continuous product purification and isolation can also be integrated, further accelerating the synthetic process. (matthey.com)
The aim was to develop all key enabling technologies of the process, the gasifier, hot filter, catalytic reformer, sorbent-based final gas cleaning, and the flexible and compact FT synthesis to TRL5 and to validate the operation at pilot-scale tests. (europa.eu)
In WP5, Ineratec used their laboratory and bench-scale test facilities for studying the performance of their Fischer-Tropsch synthesis technology with various gas compositions representing different operating modes of the FLEXCHX process. (europa.eu)
In WP6 the operation of the whole gasification, gas cleaning, and FT synthesis process was validated by carrying out two test weeks with the integrated operation. (europa.eu)
Catalytic reaction has been an essential process for wide industrial application, and it will support the future science and industry to establish the sustainable society. (confex.com)
The Guerbet reaction is one pathway for this process. (confex.com)
The simultaneous reactions involved in the metal catalyst process occur at essentially atmospheric pressure and 600-650 EC (Gerberich et al. (cdc.gov)

Fig. 4: Schematic illustration of possible OER reaction mechanisms over Co-TiO 2 . (nature.com)
We use modelling and knowledge of reaction mechanisms to determine the right reactions for the most effective production of the API. (matthey.com)
These coagulant reactions are regulated by a number of stimulatory and inhibitory mechanisms. (medscape.com)

Benchmarking hydrogen evolving reaction and oxygen evolving reaction electrocatalysts for solar water splitting devices. (nature.com)

The Sandmeyer reaction has also been employed in the synthesis of neoamphimedine, a compound that is suggested to target topoisomerase II as an anti-cancer drug. (wikipedia.org)
The ideal synthesis of a target compound is most often described in terms of the number of synthetic operations required to reach said product-with ideality lying as close to one single step as possible 1 . (nature.com)

Careful catalyst choice could reduce multiple reaction steps to a single, stereoselective step, avoiding the need for separation. (matthey.com)

The CAZy database describes the families of structurally-related catalytic and carbohydrate-binding modules (or functional domains) of enzymes that degrade, modify, or create glycosidic bonds. (lu.se)

Differentiation of the prochiral faces has been met with few successes from either stoichiometric or catalytic approaches. (unl.edu)

Alam M, Lee DU (2015) Eco-friendly synthesis, physiochemical studies, biological assay and molecular docking of steroidal oxime-ether. (springer.com)

In an alternative proposal, a transient copper(III) intermediate, formed from coupling of the aryl radical with the copper(II) species, undergoes rapid reductive elimination to afford the product and regenerate copper(I). However, evidence for such an organocopper intermediate is weak and mostly circumstantial, and the exact pathway may depend on the substrate and reaction conditions. (wikipedia.org)

These advances are not only limited to the C-N coupling, but also extend to other coupling reactions. (rsc.org)

The Sandmeyer reaction provides a method through which one can perform unique transformations on benzene, such as halogenation, cyanation, trifluoromethylation, and hydroxylation. (wikipedia.org)
More recently, trifluoromethylation of diazonium salts has been developed and is referred to as a 'Sandmeyer-type' reaction. (wikipedia.org)

These reactions typically proceed through the formation of an aryl diazonium salt followed by a reaction with a copper(I) salt to yield a substituted arene: There are many synthetic applications of the Sandmeyer reaction. (wikipedia.org)
One of the most important uses of the Sandmeyer reaction is the formation of aryl halides. (wikipedia.org)

The reaction of bis-[2-amino-4-pheny1-5-thiazolyl] disulfide with 5-nitro-salicylaldehyde in absolute ethanol resulted in the formation of a new Schiff base ligand H 2 L (1). (scirp.org)
Gharamaleki, J. , Akbari, F. , Karbalaei, A. , Ghiassi, K. and Olmstead, M. (2016) Synthesis, Characterization and Crystal Structure of a New Schiff Base Ligand from a Bis(Thiazoline) Template and Hydrolytic Cleavage of the Imine Bond Induced by a Co(II) Cation. (scirp.org)
The supporting electrolyte used is 0.1 M KCl effect of scan rate was also studies for the redox reactions for CuCl2 alone and in presence of the ligand used orange G (OG). (magiran.com)
Synthesis of the tripodal ligand functionalised with diketone coordinating moieties. (rsc.org)
Currently she is a postdoc fellow associated with the research groups of Prof. Arkady Yertsev and Prof. Petter Persson, where she is investigating the ultrafast dynamics of ligand-to-metal charge transfer states in bimolecular reactions. (lu.se)

Large-scale synthesis of transition-metal-doped TiO 2 nanowires with controllable overpotential. (nature.com)

The in situ formation of reactive carbonyl electrophiles opens a wide array of possible subsequent reactions as illustrated in the following pages. (eurekaselect.com)

By combining these various plants, we have established a system that can deal with more diverse customer requests, and we carry out a production or a custom synthesis of special fine chemicals. (koeichem.com)
In this review, we choose C-N bond formation as a typical coupling reaction and summarize the development of a heterogeneous catalytic system and its advantages. (rsc.org)
Patients should be monitored carefully for adverse reactions, especially nervous system symptoms related to efavirenz. (who.int)

Schematic of the one-pot synthesis of gold nanoplates, for cancer photothermal therapy, using peptides at room temperature. (materialstoday.com)

Gold's long-standing reputation as a largely unreactive metal has been turned upside down over the past several years because researchers have discovered numerous reactions catalyzed by the precious metal. (acs.org)

With these reactions, the overall crystal structure of the host material is generally maintained. (bvsalud.org)

Anatomy17

Organisms11

Chemicals and Drugs120

Analytical, Diagnostic and Therapeutic Techniques and Equipment33

Phenomena and Processes73

Disciplines and Occupations5

Technology, Industry, Agriculture4

Information Science3

Health Care3

Catalysts22

Organic17

Nanoparticles7

Catalysis7

Processes8

Pathways1

Asymmetric10

Intermediates2

Methane1

Enantioselective synthesis2

Nanoparticle1

Complexes10

Chemistry7

Catalyst synthesis1

Activity10

Intermediate in the synthesis2

Elucidate1

Precursors3

Transformation2

Kinetics1

Methods2

Proteins2

Compounds5

Alkenes1

Molecules1

Oxidation2

20211

Solvent3

Palladium1

Efficiency2

Routes2

Structures2

Process9

Mechanisms3

Hydrogen1

Compound2

Stereoselective1

Bonds1

Approaches1

Biological1

Transient1

Advances1

Trifluoromethylation2

Aryl2

LIGAND5

Transition metal1

Electrophiles1

System3

Schematic1

Researchers1

Crystal structure1