• carbonyl compound
  • Alternately, an imine is named as a derivative of a carbonyl, adding the word "imine" to the name of a carbonyl compound whose oxo group is replaced by an imino group, for example sydnone imine and acetone imine (an intermediate in the synthesis of acetone azine). (wikipedia.org)
  • see alkylimino-de-oxo-bisubstitution for a detailed mechanism) The equilibrium in this reaction usually favors the carbonyl compound and amine, so that azeotropic distillation or use of a dehydrating agent, such as molecular sieves or magnesium sulfate, is required to push the reaction in favor of imine formation. (wikipedia.org)
  • The most important reactions of imines are their hydrolysis to the corresponding amine and carbonyl compound. (wikipedia.org)
  • A tosylimine reacts with an α,β-unsaturated carbonyl compound to an allylic amine in the Aza-Baylis-Hillman reaction. (wikipedia.org)
  • For example, in a typical acyl substitution reaction, the starting carbonyl compound is coordinated to the catalyst through one, two or possibly more hydrogen bonds. (wikipedia.org)
  • salts thereof
  • The present disclosure relates to a composition for dyeing keratin fibers, for instance human keratin fibers such as the hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolone compounds and addition salts thereof, at least one coupler and at least one C4-C30 polyol. (google.fr)
  • Thus
  • Thus, in general DEAD is an aza-dienophile and dehydrogenating agent, converting alcohols to aldehydes, thiols to disulfides and hydrazo groups to azo groups. (wikipedia.org)
  • aromatic
  • A compound represented by general formula (1): (in formula (1), A shows a C6-30 divalent aromatic group for forming an aromatic ring, or the like, and the plurality of R1 each independently show a hydrogen atom or the like), tetracarb. (sumobrain.com)
  • synthetic
  • The 1- and 3-aza-Cope rearrangements have high activation barriers and limited synthetic applicability, accounting for their relative obscurity. (wikipedia.org)
  • This tandem aza-Cope/Mannich reaction is characterized by its mild reaction conditions, diastereoselectivity, and wide synthetic applicability. (wikipedia.org)
  • It is the most extensively studied of the aza-Cope rearrangements due to the mild conditions required to carry the arrangement out, as well as for its many synthetic applications, notably in alkaloid synthesis. (wikipedia.org)
  • generate
  • The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry co. (sumobrain.com)
  • It has also been used to generate aza-Baylis-Hillman adducts with acrylates. (wikipedia.org)
  • alkaloid
  • Originally isolated from the plant Rauvolfia serpentina, a medicinal plant widely used in Indian folk medicine, this enzyme participates in terpenoid biosynthesis and indole and ipecac alkaloid biosynthesis, both of which produce many compounds with significant physiological and medicinal properties. (wikipedia.org)
  • avenues
  • Their dualistic effects, as well as the possibility of sigma receptor activity provide new avenues for investigation in the search for biological lead compounds amongst the polycyclic compounds. (nwu.ac.za)
  • intermediate
  • The more recent x-ray crystal structure of 1-aza-3,5,7-trimethyladamantan-2-one is a good model for cationic tetrahedral intermediate. (wikipedia.org)
  • observed a very stable neutral tetrahedral intermediate in the reaction of N-acylpyrroles with organometallic compounds, followed by protonation with ammounium chloride producing a carbinol. (wikipedia.org)
  • Unlike the mechanisms behind the formation of several Pictet-Spengler compounds, a spiroindolenine intermediate containing a five-membered ring does not form during strictosidine synthesis. (wikipedia.org)
  • It also catalyses the formation of 12-aza-strictosidine, an important intermediate for cytotoxic alkaloids, from coupling secologanin with 7-aza-tryptamine. (wikipedia.org)
  • molecular
  • To explore the possibility of electrostatic interactions, the use of molecular electrostatic potentials (MEP) were employed with model compound 34 (replacing the phenyltropane moiety with a methyl group). (wikipedia.org)
  • Name
  • Aza", most probably the name of its founder. (wikipedia.org)
  • The name "Aza Khel" is given to this piece of land after its founder "Aza Khan" or "Raza Khan",who was considered as one of the great Afghan warriors. (wikipedia.org)
  • chemical
  • Phenyltropanes (PTs) are a family of chemical compounds originally derived from structural modification of cocaine. (wikipedia.org)
  • Dimers of phenyltropanes, connected in their dual form using the C2 locant as altered toward a carboxamide structural configuring (in contrast and away from the usual inherent ecgonine carbmethoxy), as per Frank Ivy Carroll's patent inclusive of such chemical compounds, possibly so patented due to being actively delayed pro-drugs in vivo. (wikipedia.org)
  • An imine (/ɪˈmiːn/ or /ˈɪmɪn/) is a functional group or chemical compound containing a carbon-nitrogen double bond. (wikipedia.org)
  • present
  • In a specific aspect, the phenol resin composition of the present invention is characterized in that it contains boehmite having an aspect ratio within a range from 1 to 100 and also contains an alumina-based compound as a filler, an amount of the boehmite being from 1 to 150 parts by weight based on 100 parts by weight of the phenol resin. (google.com.au)
  • The present invention provides: a novel compound which is characterized by being capable of increasing the number of heart beats or a blood pressure mildly to. (patents.com)
  • The present invention relates to a compound represented by formula 1, an organic optoelectronic element comprising the same, and a display device comprising the organic optoelectronic element. (sumobrain.com)
  • Many more compounds, related to azadirachtin, are present in the seeds as well as in the leaves and the bark of the neem tree which also show strong biological activities among various pest insects Effects of these preparations on beneficial arthropods are generally considered to be minimal. (wikipedia.org)
  • Group
  • Proceedings of the Seventh Conference on Zoo and Wildlife Nutrition, AZA Nutrition Advisory Group, Knoxville, TN. (nagonline.net)
  • form
  • As stated in the introduction, strictosidine synthase catalyzes the biological Pictet-Spengler reaction of tryptamine and secologanin to stereoselectively form 3-alpha(S)-strictosidine, the universal precursor for monoterpenoid indole alkloid compounds. (wikipedia.org)
  • calcium
  • An interesting observation made with all the aza-bridgehead compounds as well as with NGP1-01, was their tendency to increase intracellular calcium levels at low concentrations. (nwu.ac.za)
  • This dualistic feature of these compounds can be attributed to activity on both the sigma receptors and calcium channels, as the PC-12 cells distinctly express both these pharmacological entities. (nwu.ac.za)
  • The binding of [3H]MK-801 remained fairly constant in the presence of increasing concentrations of the test compounds, indicating that they exert their calcium modulating effect by binding to a site other than the phencyclidine binding site of the NMDA receptor ion channels. (nwu.ac.za)
  • addition
  • In addition to these characteristics that might define them as NMDAR antagonists, the triquinylamines also share structural similarities to the pentacycloundecane cage compounds. (nwu.ac.za)
  • Because pure neem oil contains other insecticidal and fungicidal compounds in addition to azadirachtin, it is generally mixed at a rate of 1 ounce per gallon (7.8 ml/l) of water when used as a pesticide. (wikipedia.org)
  • gives
  • In an attempt to persuade the two girls to stop pursuing the elder Pickett, Davis gives Aza $100,000 taken from his father's various stashes around the house, which she splits with Daisy. (wikipedia.org)
  • methods
  • Disclosed are methods and compositions for the preparation of steroid 5α-reductases by recombinant means, as well as for the use of these enzymes in screening assays for the identification of compounds which have the ability to inhibit or otherwise alter the enzymatic function of these enzymes. (google.co.uk)
  • Anti-angiogenic treatments, treatments of hyperpermeability disorders, treatments of neuropathic and neurodegenerative disorders, pain treatments, methods of reducing the risk of pre-eclampsia and compounds for use in such methods are de. (sumobrain.com)
  • useful
  • This invention relates to compounds (Formula (1)) that are agonists of the muscarinic M1 receptor and which are useful in the treatment of muscarinic M1. (patents.com)
  • This makes the DAINV reaction particularly useful in natural product syntheses, where the target compounds often contain heterocycles. (wikipedia.org)
  • high
  • The story centers around 16-year-old Aza Holmes, a high school student living with multiple anxiety disorders, and her search for a fugitive billionaire. (wikipedia.org)
  • Aza Holmes is a 16-year-old high school student in Indianapolis who struggles with anxiety, mostly stemming from a fear of the human microbiome. (wikipedia.org)
  • means
  • Identification of the compounds was achieved by means of Nuclear Magnetic Resonance (NMR), Mass Spectrometry (MS) and Infrared (IR) techniques. (nwu.ac.za)
  • formation
  • Two series of compounds (naphthylalkylamines and anthrylalkylamines) where intramolecular exciplex formation would be expected to occur have been synthesised. (le.ac.uk)
  • A study of the emission from these compounds has shown that the geometrical requirements for exciplex formation are less stringent than for excimer formation. (le.ac.uk)
  • study
  • In order to determine a more specific site of action for these compounds, a competition radioligand binding study was performed. (nwu.ac.za)
  • The potent phencyclidine binding site blocker, [3H]MK-801, served as reference compound in this study. (nwu.ac.za)
  • search
  • Tempted by the reward of $100,000 for information leading to Pickett's arrest, Daisy takes Aza on a search for the missing billionaire. (wikipedia.org)
  • browse
  • These findings indicate that cold storage of this browse species is a possible option for dietary supplementation of iron-binding compounds to captive black rhinoceros to reduce iron accumulation in this population. (nagonline.net)
  • family
  • The title compound, 1'-(benzyloxy)-5'-cyanomethyl-2,3-dihydrospiro [inden-1,2'-pyrrolidine], ( trans-IIIa ), belongs to the family of spirocyclic compounds. (iucr.org)
  • function
  • PRIMA-1 has been identified as a compound that restores the transactivation function to mutant p53 and induces apoptosis in cells expressing mutant p53. (biomedsearch.com)
  • These results indicate that in some cellular context, the cell sensitivity to PRIMA-1 could depend on the abolition of a gain-of-function activity of the mutated p53, through a protein degradation pathway specifically induced by this compound. (biomedsearch.com)