A CONVENIENT SYNTHESIS OF PYRIDO[3,2-B][1,4]-BENZOTHIAZINE DERIVATIVES VIA OXIDATIVE RING-CLOSURE OF 3-SUBSTITUTED 6-[N-(2-MERCAPTO-PHENYL)]AMINOPYRIDINES

Authors
CHERN JW WU KR
Citation
Jw. Chern et Kr. Wu, A CONVENIENT SYNTHESIS OF PYRIDO[3,2-B][1,4]-BENZOTHIAZINE DERIVATIVES VIA OXIDATIVE RING-CLOSURE OF 3-SUBSTITUTED 6-[N-(2-MERCAPTO-PHENYL)]AMINOPYRIDINES, Heterocycles, 41(3), 1995, pp. 461-469
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Heterocycles → ACNP
ISSN journal
03855414
Volume
41
Issue
3
Year of publication
1995
Pages
461 - 469
Database
ISI
SICI code
0385-5414(1995)41:3<461:ACSOPD>2.0.ZU;2-2
Abstract
3-Substituted pyrido[3,2-b] [1,4] benzothiazines were prepared either by heating the disulfide derivatives, which were obtained by a treatme nt of 3-substituted 6-[N-(2-mercaptophenyl)]aminopyridines with diethy l azodicarboxylate (DEAD) or NBS in DMF at room temperature under the basic conditions or directly by heating the reaction mixture 3-substit uted 6-[N-(2-mercaptophenyl)]aminopyridines.