Reaction of tryptamine 1 with dimethyl -3-methoxyallylidenemalonate 2 afforded N?-[4,4-bis (methoxycarbonyl)-1,3-butadienyl] tryptamine 3 which in combination with acetylchloride and pyridine in dichloromethane gave N?, N?-[acetyl]-[(4,4-dinethoxycarbonyl) 1,3butadienyl] tryptamine 4. Treatment of 3 with sodium hydroxide afforded 2H[N-(3-indolyl) ethyl] 2-oxo-3-methoxycarbonyl-1-pyridine 5. Cy...

In the title compound, C(14)H(8)N(2)O(8)S(2), the asymmetric unit contains two independent 2,2'-dinitro-5,5'-dithio-dibenzoic acid (Dina) mol-ecules with roughly the same conformation. In the crystal structure, strong inter-molecular O-H⋯O hydrogen bonds link the organic mol-ecules into a one-dimensional zigzag chain along the a axis. The dihedral angles between the two aromatic rings [109.3 (2...

Abstract The sustained interest in the synthesis of new analogues 2,2′-bipyridines is supported by importance compounds featuring bipyridine core diverse areas chemical, biomedical and materials research, which relayed into development approaches expansion existing synthetic methods. This short review covers advances 2,2′-bipyridines, including both with a given substitution pattern methods for...

could be prepared by employing appropriate precursor molecules. Nanotubes containing both boron and nitrogen have Carbon nanotubes containing small amounts of nitrogen are been grown in the electric arc discharge between graphite produced by the pyrolysis of aza-aromatics such as pyridine, cathodes and graphite anodes filled with boron in a nitrogen methylpyrimidine and triazine over cobalt nan...

The main interaction between pyridine and zeolites leads to form a hydrogen bond between the N atom of pyridine and OH groups of zeolites. The present work reports a theoretical study about the structural, vibrational and topological properties of the charge distribution of the molecular complexes between pyridine and a series of acids sites of zeolites. The calculated structural parameters...