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  2. Enamine - Wikipedia

    en.wikipedia.org/wiki/Enamine

    If one or both of the nitrogen substituents is a hydrogen atom it is the tautomeric form of an imine. This usually will rearrange to the imine; however there are several exceptions (such as aniline). The enamine-imine tautomerism may be considered analogous to the keto-enol tautomerism. In both cases, a hydrogen atom switches its location ...

  3. Imine - Wikipedia

    en.wikipedia.org/wiki/Imine

    The relationship of imines to amines having double and single bonds can be correlated with imides and amides, as in succinimide vs acetamide. Imines are related to ketones and aldehydes by replacement of the oxygen with an NR group. When R = H, the compound is a primary imine, when R is hydrocarbyl, the compound is a

  4. Imide - Wikipedia

    en.wikipedia.org/wiki/Imide

    One example is Kapton where the repeat unit consists of two imide groups derived from aromatic tetracarboxylic acids. [3] Another example of polyimides is the polyglutarimide typically made from polymethylmethacrylate (PMMA) and ammonia or a primary amine by aminolysis and cyclization of the PMMA at high temperature and pressure, typically in ...

  5. Inorganic imide - Wikipedia

    en.wikipedia.org/wiki/Inorganic_imide

    The inorganic imide is an inorganic chemical compound containing an anion with the chemical formula HN 2− , in which nitrogen atom is covalently bonded to one hydrogen atom (as in lithium imide Li 2 NH and calcium imide CaNH ).

  6. Tautomer - Wikipedia

    en.wikipedia.org/wiki/Tautomer

    enamineimine: H−N−C=C ⇌ N=C−C−H. cyanamide – carbodiimide; guanidine – guanidine – guanidine: With a central carbon surrounded by three nitrogens, a guanidine group allows this transform in three possible orientations

  7. Iminium - Wikipedia

    en.wikipedia.org/wiki/Iminium

    The C=N bonds, which are near 129 picometers in length, are shorter than C-N single bonds. Cis/trans isomers are observed. The C=N distance is slightly shorter in iminium cations than in the parent imine, and computational studies indicate that the C=N bonding is also stronger in iminium vs imine, although the C=N distance contracts only slightly.

  8. Oxime - Wikipedia

    en.wikipedia.org/wiki/Oxime

    In organic chemistry, an oxime is an organic compound belonging to the imines, with the general formula RR’C=N−OH, where R is an organic side-chain and R' may be hydrogen, forming an aldoxime, or another organic group, forming a ketoxime.

  9. Povarov reaction - Wikipedia

    en.wikipedia.org/wiki/Povarov_reaction

    The reaction depicted in Scheme 2 illustrates the Povarov reaction with an imine and an enamine in the presence of yttrium triflate as the Lewis acid. [5] This reaction is regioselective because the iminium ion preferentially attacks the nitro ortho position and not the para position.