Syntheses of 1,4-Benzothiazepines and 1,4-Benzoxazepines via Cyclizations of 1-[2-Arylthio(oxy)ethyl]-5-benzotriazolyl-2-pyrrolidinones and 3-Benzotriazolyl-2-[2-arylthio(oxy)ethyl]-1-isoindolinones
作者:Alan R. Katritzky、Yong-Jiang Xu、Hai-Ying He、Shamal Mehta
DOI:10.1021/jo010179b
日期:2001.8.1
(4), 2-(arylsulfanyl)ethylamines 3, or 2-phenoxyethylamine (11) with 2,5-dimethoxy-2,5-dihydrofuran (5) or 2-formylbenzoic acid (8). Lewis acid mediated cyclizations of 6 and 9 produced novel 1,4-benzothiazepines 7a-e and 10a-f, respectively. Cyclizations of 12 and 14 gave 1,4-benzoxazepines 13 and 15, respectively.