(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.
1- [2-芳
硫基(氧基)乙基] -5-苯并三唑基-
2-吡咯烷酮6a-e,12和3-苯并三唑基-2- [2-芳
硫基(氧基)乙基] -1-
异吲哚啉酮9a-f,14为可容易地从苯并三唑(4),2-(芳基
硫烷基)
乙胺3或
2-苯氧基乙胺(11)与
2,5-二甲氧基-2,5-二氢呋喃(5)或2-甲酰基
苯甲酸(8)的反应中获得。
路易斯酸介导的6和9的环化分别产生了新的1,4-苯并
硫氮杂7 7a-e和10a-f。12和14的环化分别得到1,4-苯并x氮杂13和15。