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The general structure of an imine. In organic chemistry, an imine (/ ɪ ˈ m iː n / or / ˈ ɪ m ɪ n /) is a functional group or organic compound containing a carbon–nitrogen double bond (C=N). The nitrogen atom can be attached to a hydrogen or an organic group (R). The carbon atom has two additional single bonds.
General structure of an imine. Schiff bases are imines in which R 3 is an alkyl or aryl group (not a hydrogen). R 1 and R 2 may be hydrogens General structure of an azomethine compound. In organic chemistry, a Schiff base (named after Hugo Schiff) is a compound with the general structure R 1 R 2 C=NR 3 (R 3 = alkyl or aryl, but not hydrogen).
The Staudinger synthesis, also called the Staudinger ketene-imine cycloaddition, is a chemical synthesis in which an imine 1 reacts with a ketene 2 through a non-photochemical 2+2 cycloaddition to produce a β-lactam 3. [1] The reaction carries particular importance in the synthesis of β-lactam antibiotics. [2]
An imine reductase (IRED) is an enzyme that reduces imines to amines. [ 1 ] [ 2 ] This family of enzymes is employed in the industrial production of amine -containing pharmaceuticals . [ 3 ] The IRED enzymes that are found to catalyze both imine formation and imine reduction are called reductive aminases (RedAms).
The imine is often generated in situ from an amine and formaldehyde.An example is the reaction of cyclopentadiene with benzylamine to an aza norbornene. [9]The catalytic cycle starts with the reactions of the aromatic amine with formaldehyde to the imine and the reaction of the ketone with proline to the diene.
Methylene imine is an organic compound with the chemical formula H 2 C=NH. The simplest imine , it is a stable, colorless gas that has been detected throughout the universe. [ 1 ] Structural parameters determined by microwave spectroscopy include a C=N bond length of 1.27 Å , an N–H bond length of 1.02 Å and an H−N=C bond angle of 110.5 ...
The first N-sulfinyl imines in racemic form were formed by oxidation of p-toluene-sulfenyl imines with m-CPBA. [9] Enantiopure p-toluene-sulfinyl imines arise by the reaction of the commercially available Andersen reagent (menthyl p-toluenesulfinate) [10] with metallo-ketimines but is limited to ketone derived N-sulfinyl imines. [11]
Reaction of cyclohexylamine with acetaldehyde forming an imine. Sodium sulfate removes water [1] In organic chemistry, alkylimino-de-oxo-bisubstitution is the organic reaction of carbonyl compounds with amines to imines. [2] The reaction name is based on the IUPAC Nomenclature for Transformations.