Synthesis of substituted benzoxazinylthieno[2,3-b]pyridines by the reaction of (3-cyanopyridin-2-ylthio)acetic acids or their amides with o-aminophenyl(diphenyl)carbinol
作者:E. A. Kaigorodova、L. D. Konyushkin、A. A. Osipova、E. A. Gavrilova、E. V. Gromachevskaya、G. D. Krapivin
DOI:10.1007/s11172-005-0208-5
日期:2004.12
A general method for the synthesis of 3-amino-2-(4,4-diphenyl-4H-3,1-benzoxazin-2-yl)thieno[2,3-b]pyridines was proposed. The method involves reactions of (3-cyanopyridin-2-ylthio)acetic acids or their amides with o-aminophenyl(diphenyl)carbinol in nitromethane in the presence of perchloric acid followed by neutralization of the resulting salts.
Research on 4H-3,1-benzoxazines. 10. Reactions of o-aminophenyldiphenylcarbinol with haloalkanoic acids
作者:E. V. Gromachevskaya、V. G. Kul'nevich、D. P. El'chinov、T. P. Kosulina、A. L. Chekhun
DOI:10.1007/bf00529890
日期:1993.4
Synthesis of 3-chloro-6,6-diphenyl-6,11-dihydropyrido[1?,2?:1,2]imidazo-[4,5-b]quinoline based on reaction of 2-chloromethyl-4,4-diphenyl- 4h-3,1-benzoxazine with 2-amino-5-chloropyridine