Reaction of 2-(4-chloro-3,3,7-trimethyl-2,3-dihydro-1H-indol-2-yl-idene)propane-dial with hydroxyl-amine gives the title compound, C(14)H(14)ClN(3)O, in which the ring N atom is essentially planar [sum of angles around the ring N atom = 361°], indicating conjugation with the 2-cyano-acryl-amide unit. The orientation of the acetamide group arises from intra-molecular hydrogen bonding between the...

The cation of the title compound, [Cu(L)], is formed by Michael condensation of (4,6,6-trimethyl-3,7-diazanon-3-ene1,9-diamine)copper(II) with methanal and nitropropane. This cation forms a tetracyanonickelate(II) compound, the unit cell of which contains two centrosymmetric tetracyanonickelate(II)-bridged trinuclear cations, namely diaqua1,3 O-di-cyano-1:2 C:N;1:3 C:N-dicyano-1 C-bis(13-ethyl-...

protonation of the reactive intermediate produced in the  reaction between trimethyl phosphite and dimethyl acetylenedicarboxylate or diethyl acetylenedicarboxylate by resorcinol, 5-methylresorcinol, 2,5-dihydroxyacetophenone, 4-chloro-2-methylphenol, 4-chloro-3,5-dimethy-lphenol, 4-hydroxypyridine, 2-hydroxypyridine, 3-hydroxypyridine, or 8-hydroxyquinoline leads to vinylphosphonium salts, whi...