Synthesis, Characterization and X-Ray Crystal Structure of 3-Methyl-4-oxo-7-phenyl- 4,7-dihydrothieno[2,3-b]pyridine-2-carboxyxlic Acid Ethyl Ester
作者:Y.N. Mabkhot、N.N.E. El-Sayed、F. Alatibi、A. Barakat、H.A. Ghabbour、H-K. Fun
DOI:10.14233/ajchem.2014.18416
日期:——
Synthesis of 3-methyl-4-oxo-7-phenyl-4,7-dihydrothieno[2,3-b]pyridine-2-carboxylic acid ethyl ester (3) is described. The structure of the title compound 3 is confirmed by NMR, FT-IR, MS, CHN microanalysis, and X-ray crystallography. Compound 3 is a useful, functionalized pyrido thiophene derivative that can be transformed to novel heteroaromatics of potential pharmacological activities.
Preparation of thieno[2,3-b]pyrroles starting from ketene-N,S-acetals
作者:Geoffroy Sommen、Alain Comel、Gilbert Kirsch
DOI:10.1016/s0040-4020(03)00054-1
日期:2003.2
Thieno[2,3-b]pyrroles 4 can easily be synthesised in two different ways by using phenyl isothiocyanate and activated methylene compounds. The priority of the formation of the thiophene or pyrrole ring is investigated. (C) 2003 Elsevier Science Ltd. All rights reserved.