Recommanded Product: 3685-23-2. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: cis-4-Aminocyclohexane carboxylic acid, is researched, Molecular C7H13NO2, CAS is 3685-23-2, about Reductive cyclization of aminobenzoic acids. Author is Augustine, Robert L.; Vag, Linda A..
Hydrogenation of m- and p-H2NC6H4CO2H over a Ru catalyst at 150°/1600 psig gave the bicyclic lactams I and II, resp. Cyclization also occurred on hydrogenation of 3,4-Me(H2N)C6H3CO2H. Hydrogenation of 3,4-(H2N)2C6H3CO2H resulted in loss of one of the NH2 groups; the 4-NH2 group was lost twice as readily as the 3-NH2 group. With 3,4-(HO)(H2N)C6H3CO2H, complete hydrogenolysis of the NH2 group occured.
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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate