Facile synthetic routes for three 4-substituted 2,2'-bi-pyridine derivatives, 4-[2-(4-methyl-phenyl)-ethyn-yl]-2,2'-bi-pyridine, C19H14N2, (I), 4-[2-(pyridin-3-yl)ethyn-yl]-2,2'-bi-pyridine, C17H11N3, (II), and 4-(indol-4-yl)-2,2'-bi-pyridine, C18H13N3, (III), via Sonogashira and Suzuki-Miyaura cross-coupling reactions, respect-ively, are described. As indicated by X-ray analysis, the 2,2'-bi-p...

A series of 2,6-disubstituted pyridine derivatives were prepared from 2,6-diacetylpyridine or 2,6dicarbonyl pyridine dichloride as starting materials. Reaction of 2,6-diacetylpyridine 1 with hydroxylamine hydrochloride or different aromatic aldehydes afforded the corresponding 2,6-diacetylpyridine dioxime and 2,6-bis-[β -(2-thienyl)acryloyl]pyridine derivatives 2 and 3, respectively. Additional...

The title compound, C(15)H(17)N(3), was prepared by reaction of benzoyl-pyridine and hexahydropyrimidine. The 1,3-diazinane ring adopts a chair conformation with one N-H group axial and the other equatorial. The axial N-H group participates in very weak hydrogen bonding to the lone pair of electrons of the N atom with the equatorial H atom producing a very weakly hydrogen-bonded dimer. The pyri...

Treatment of N(2),N(6)-bis(6-acrylamidopyridin-2-yl)pyridine-2,6-dicarboxamide with benzimidazole gives the acyclic aza-Michael addition product N(2),N(6)-bis(6-(3-(1H-benzo[d]imidazol-1-yl)propanamido)pyridin-2-yl)pyridine-2,6-dicarboxamide (2). The macrocycle N(1),N(7)-pyridine-2,6-dimethyl-N(2),N(6)-bis(6-(3-(1H-benzo[d]imidazol-1-yl)propanamido)pyridin-2-yl)pyridine-2,6-dicarboxamide dibrom...

In the title compound, [Ni(C(8)H(7)O(3))(NO(3))(C(12)H(12)N(2))(2)], the asymmetric unit contains a Ni(II) atom, two mol-ecules of 2-(benzyl-amino)pyridine, a mol-ecule of deprotonated o-vanillin (3-methoxy-salicylaldehydate) and a bidentate nitrate anion. The Ni(II) center is six-coordinated by two pyridine N atoms from 2-(benzyl-amino)pyridine, two O atoms from o-vanillin and two O atoms from...