• Derivatives of ethylene, a simple organic gas of biological origin with many industrial and biological use. (lookformedical.com)
  • 9~ yl)-1-methyl-ethoxymethyl]-phosphonic acid diisopropoxycarbonyloxymethyl ester (tenofovir disoproxil fumarate, Viread®) and (2R, 5S, cis)-4-amino-5- fluoro-l-(2~ hydroxymethyl-1,3-oxathiolan-5-yl)-(1H)-pyrimidin-2-one (emtricitabine, EmtrivaTM, (-)-cis FTC) and their physiologically functional derivatives. (gc.ca)
  • A Fukuzumi acridinium photooxidant with phenyldisulfide as a redox-active cocatalyst enable a direct, catalytic hydrodecarboxylation of primary, secondary, and tertiary carboxylic acids as well as a double decarboxylation of malonic acid derivatives. (organic-chemistry.org)
  • Acyl derivatives on hydrolysis yield the parent acid. (studyinnovations.com)
  • Alternative system of nomenclature is naming the acids as the derivatives of acetic acids. (studyinnovations.com)
  • Aromatic acids Ar- COOH are usually named as derivatives of the parent acid benzoic acid, C 6 H 5 COOH. (studyinnovations.com)
  • The aim of these studies has been to develop a much-needed general synthetic route to amino acids (and other amine derivatives) possessing a quaternary chiral centre alpha -to the nitrogen atom and in particular, alpha , alpha -disubstituted alpha -amino acids. (exeter.ac.uk)
  • The central theme of this methodology is the formation of alpha -aminoalkyl radicals from existing amino acid and alpha -amino alcohol derivatives by 1,5-hydrogen atom transfer and the subsequent trapping of these radicals with appropriate radicalphiles, thus generating quaternary centres with high efficiency and excellent stereocontrol. (exeter.ac.uk)
  • Organic compounds containing the carboxy group (-COOH). (lookformedical.com)
  • This group of compounds includes amino acids and fatty acids. (lookformedical.com)
  • Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. (lookformedical.com)
  • Organic compounds containing a carbonyl group in the form -CHO. (lookformedical.com)
  • This method allows the synthesis of high-value compounds including medicinally relevant scaffolds and a monodecarboxylation of differently substituted dicarboxylic acids. (organic-chemistry.org)
  • A copper-catalyzed aerobic oxidative decarboxylation of phenylacetic acids and α-hydroxyphenylacetic acids enables the synthesis of aromatic carbonyl compounds via decarboxylation, dioxygen activation, and C-H bond oxidation steps in a one-pot protocol with molecular oxygen as the sole terminal oxidant. (organic-chemistry.org)
  • Amines are organic compounds and a type of functional group that contain nitrogen as the key atom. (newworldencyclopedia.org)
  • We are engaged in offering Chemical Compounds which includes hydroxy flavone, gossypin, vanillinacetate, chlorogenic acid, bromovanillin and harmine pure.All these chemical compounds can exist as solids, at low enough temperatures & may also exist as liquids, gases, and even plasmas. (pcchem.net)
  • Preferred sulphur nucelophiles are organic compounds containing a thione group and especially thioureas. (allindianpatents.com)
  • The present invention relates to novel alkoxy propionic acid and their pharmaceutical accetable salts having use as antidiabetic,hypolipidemic,antiobesity and hypocholesterolemic compounds. (allindianpatents.com)
  • Furthermore, the rise in industrial activities, especially those that use secondary compounds and high amounts of water in their processes, has increased the concentration in water sources of pollutants, such as metals, radioactive materials, halogenated compounds, persistent organic pollutants, and bioaccumulative and toxic chemicals, such as pesticides. (ncsu.edu)
  • Hirayama, K. (1967) Handbook of Ultraviolet and Visible Absorption Spectra of Organic Compounds. (photochemcad.com)
  • DMS, UV Atlas of Organic Compounds. (photochemcad.com)
  • CRC Atlas of Spectral Data and Physical Constants for Organic Compounds. (photochemcad.com)
  • The primary suffix name for an aliphatic carboxylic acid is based on the ' longest carbon chain name *' for the - COOH bond system e.g. ethanoic acid, propanoic acid etc. (docbrown.info)
  • Aliphatic amines display significant solubility in organic solvents , especially polar organic solvents. (newworldencyclopedia.org)
  • The aliphatic carboxylic acids are commonly known by their initial names, which have been derived from the source of the particular acid. (studyinnovations.com)
  • I am an organic chemist with research interests that cover a wide range of aspects of synthesis. (exeter.ac.uk)
  • Recent studies have focused on asymmetric synthesis of structurally complex amino acids, using what has proved to be a very versatile radical-based methodology and also the use of structurally unusual heterocycles for masking the reactivity of synthetically valuable functional groups. (exeter.ac.uk)
  • In this area, we have developed a methodology for the incorporation of protected isocyanates into organic molecules and this chemistry is being applied to the synthesis of a diverse set of biologically important, nitrogen-containing heterocycles. (exeter.ac.uk)
  • My teaching activities cover all aspects of organic chemistry from basic structure and bonding in organic molecules, to complex organic synthesis. (exeter.ac.uk)
  • The use of radical-based methodology in the synthesis of highly substituted amines and amino acids. (exeter.ac.uk)
  • The second major area of my group's research has involved studies into the use of structurally 'unusual' heterocycles as protected, reactive functional groups in organic synthesis. (exeter.ac.uk)
  • Many amides can be reduced to amines by triacetoxyborohydride formed in situ from sodium borohydride and glacial acetic acid. (thevespiary.org)
  • In many cases trifluoroacetic acid gives better yields than acetic acid. (thevespiary.org)
  • WO 2006/135881 describes quaternized ammonium salts prepared by condensation of a hydrocarbyl-substituted acylating agent and of an oxygen- or nitrogen-containing compound with a tertiary amino group, and subsequent quaternization by means of hydrocarbyl epoxide in the presence of stoichiometric amounts of an acid, especially acetic acid. (trea.com)
  • 5- and 6-Alkynoylsilanes are converted to α -alkylidenecycloalkanones by treatment with [RhCl(CO) 2 ] 2 in the presence of acetic acid via transmetallation between the acylsilane moiety and a rhodium(I) complex. (go.jp)
  • Secondary amines have two organic substituents bound to N together with one H. In tertiary amines all three hydrogen atoms are replaced by organic substituents. (newworldencyclopedia.org)
  • These are also named as fatty acid because some of higher members particularly palmitic and stearic acids, occur in natural fats. (studyinnovations.com)
  • Only the hydrogen atom of the carboxyl group is replaceable by a metal, therefore the fatty acids are mono-basic. (studyinnovations.com)
  • Especially preferred amides are the Ci^-alkyl amides of C1-4-fatty acids such as dimethylformamide and dimethylacetamide. (allindianpatents.com)
  • Fatty acid methyl esters, C18-22 mono unsatd. (europa.eu)
  • An amino acid molecule contains at least one carboxylic acid group ( -COOH ) and at least one amine group ( -NH 2 ). (docbrown.info)
  • If the amine group is on the first carbon that can have a hydrogen atom substituted by a another different atom of group it is known as an alpha ( α ) amino acid. (docbrown.info)
  • If the amine is on the 3rd carbon it is a beta (β) amino acid. (docbrown.info)
  • If the amine is on the 4th carbon it is a beta (γ) amino acid. (docbrown.info)
  • The nitrogen, sulphur or phosphorus nucleophile may be any organic compound (including ammonia) which contains a lone pair of electrons on a nitrogen, sulphur or phosphorus atom and which is substantially inert as far as the bisamide and BIT are concerned. (allindianpatents.com)
  • These nitrogen, sulphur and phosphorus nucleophiles include hard, borderline and soft Lewis Acids and Bases as set forth in "Mechanism and Theory in Organic Chemistry" (3rd Edition) by T.H. Lowry and K.S. Schueller, Harper and Row, New York, 1987 on pages 318 to 322, particularly the bases and especially those detailed in Table 3.21. (allindianpatents.com)
  • R8 and R9 when present on nitrogen atom together may form a 5 or 6 membered cyclic structure containing carbon atoms and one or more heteroatoms selected from oxygen, sulfur or nitrogen. (allindianpatents.com)
  • A base-catalyzed Michael-type addition of sodium diethyl malonate to N -Boc-α-amidoalkyl- p -tolyl sulfones in tetrahydrofuran followed by hydrolysis of the adducts in refluxing 6 M aqueous hydrochloric acid affords β 3 -amino acid hydrochlorides in high yield and excellent purity. (organic-chemistry.org)
  • Doc Brown's Chemistry Advanced Level Pre-University Chemistry Revision Study Notes for GCE IB advanced A level organic chemistry students US K12 grade 11 grade 12 organic chemistry the chemistry of amino acids structure and reactions 20 which amino acids are in proteins? (docbrown.info)
  • This is one of several forms of blocked N -terminals which present a problem for N -terminal sequencing using Edman chemistry, which requires a free primary amino group not present in pyroglutamic acid. (pcchem.net)
  • Gillam, A. E. and E. S. Stern (1954) An Introduction to Electronic Absorption Spectroscopy in Organic Chemistry. (photochemcad.com)
  • Zollinger, H. (1987) Color Chemistry: Syntheses, Properties, and Applications of Organic Dyes and Pigments. (photochemcad.com)
  • The names of amides are formed by replacing -oic acid (or -ic acid for common names) by amide or -carboxylic acid by carboxamide. (studyinnovations.com)
  • Reducing conditions exist at the cathode of sufficient power to enable the electrolytic hydrogen to add to unsaturated organic molecules or to remove oxygen from organic molecules. (thevespiary.org)
  • The sodium salt of pyroglutamic acid - known either as sodium pyroglutamate, sodium PCA, or sodium pidolate - is used for dry skinand hair products, as it is a humectant. (pcchem.net)
  • The mixture was extracted with chloroform, and the organic layer was dried over sodium sulfate, filtrated and concentrated in vacuo The crude was triturated with diethyl ether to give 3,6-dimethylpyrazine-2-carboxylate. (ambeed.com)
  • Structurally amines resemble ammonia , wherein one or more hydrogen atoms are replaced by organic substituents such as alkyl and aryl groups. (newworldencyclopedia.org)
  • As displayed in the images below, primary amines arise when one of three hydrogen atoms in ammonia is replaced by an organic substituent. (newworldencyclopedia.org)
  • A cyclized derivative of L-GLUTAMIC ACID. (lookformedical.com)
  • A non-essential amino acid that is synthesized from GLUTAMIC ACID. (lookformedical.com)
  • N -terminal glutamic acid and glutamine residues can spontaneously cyclize to become pyroglutamate. (pcchem.net)
  • According to the IUPAC system of nomenclature, the suffix of the monocarboxylic acid is 'oic acid', which is added to the name of the alkane corresponding to the longest carbon chain containing the carboxyl group, e.g. (studyinnovations.com)
  • When the acid has been added the mixture is allowed to stir for one hour with or without heating. (thevespiary.org)
  • There are many amino acids essential to life and are found combined together in proteins e.g tissue, enzymes. (docbrown.info)
  • Amino acids are the building blocks for these substances form long chains called polypeptides or proteins. (docbrown.info)
  • A mild decarboxylative reduction of naturally abundant carboxylic acids such as α-amino acids and α-hydroxy acids has been achieved via visible-light photoredox catalysis using an organocatalytic photoredox system. (organic-chemistry.org)
  • Reducing sugars react with amino acids in the Maillard reaction, a series of reactions that occurs while cooking food at high temperatures and that is important in determining the flavor of food. (wikipedia.org)
  • In such a reaction, the sugar becomes a carboxylic acid. (wikipedia.org)
  • An acid anhydride is named by substituting anhydride for acid in the name of the acid from which it is derived. (studyinnovations.com)
  • Unlike the reduction of most inorganic substances, the reduction of organic com-pounds is sometimes reversible (e.g., quinone-hydroquinone, azobenzene-hydrazobenzene, nitrosobenzene-phenylhydroxylamine). (thevespiary.org)
  • The amino group -NH 2 , with its C-atom position number, is added as a prefix. (docbrown.info)
  • This is the 2nd carbon atom in the chain next to the carboxylic acid group. (docbrown.info)
  • The group obtained from a carboxylic acid by the removal of the hydroxyl portion is known as an acyl group. (studyinnovations.com)
  • The name of the cation (in the case of a salt) or the name of the organic group attached to the oxygen of the carboxyl group (in the case of an ester) precedes the name of the acid. (studyinnovations.com)
  • Diminished solubility in water, although they retain their solubility in suitable organic solvents only. (newworldencyclopedia.org)
  • Its physicochemical properties such as its poor solubility in water or in organic solvents limit its utilization for a specific application. (ijpsr.com)
  • Henri, V. (1929) Quantitative determination of ultra-violet absorption spectra in solutions of organic substances. (photochemcad.com)
  • Schmillen, A. and R. Legler (1967) Luminescence of Organic Substances (Edited by K.-H. Hellwege and A. M. Hellwege), Springer-Verlag, New York. (photochemcad.com)
  • The process of ester formation from an acid and an alcohol called esterification is an equilibrium process. (studyinnovations.com)
  • One of the key processes in which human body eliminates toxic chemicals as well as hormones (such as estrogen) is by attaching glucuronic acid to them in the liver and then excreting the complex in the bile. (medindex.am)
  • It is conjugated to GLYCINE in the liver and excreted as hippuric acid. (lookformedical.com)
  • they are stuck in the cyclic form. (wikipedia.org)
  • The calcium salt form of glucaric acid, a natural substance found in many fruits and vegetables, with potential anti-cancer property. (medindex.am)
  • A palladium-catalyzed chemoselective protodecarboxylation of polyenoic acids provides the desired polyenes in good yields under mild conditions using either a Pd(0) or Pd(II) catalyst. (organic-chemistry.org)
  • However, the properties of carboxylic acids are not simply the combined properties of the two directly bonded functional groups. (studyinnovations.com)
  • Pyridine nucleophiles include pyridine itself and substituted pyridines, especially those substituted by amino or C1-4-substituted amino groups such as 4-dimethylaminopyridine. (allindianpatents.com)
  • Preferred phosphorus nucieophiles are those containing three organic groups such as triaryl or trialkyl phosphines. (allindianpatents.com)
  • The use of FeCl 3 as catalyst enables a rapid decarboxylation of methylene tethered cyclic 1,3-diesters in the presence of water to yield α,β-unsaturated acids with high E -stereoselectivity under both microwave and conventional heating conditions. (organic-chemistry.org)
  • Kojic acid is a chelation agent produced by several species of fungi, especially Aspergillus oryzae , which has the Japanese common name koji . (pcchem.net)
  • Wolfbeis, O. S. (1985) The fluorescence of organic natural products. (photochemcad.com)
  • A number of other disciplines and domains concern the aging and the aged, such as organic processes of aging (senescence), medical studies of the aging process (gerontology), diseases that afflict older adults (geriatrics), technology to support the aging society (gerontechnology), or leisure and sport activities adapted to older persons, such as senior sport. (mathisfunforum.com)