Tin(II) chloride dihydrate-mediated deacetalisation- bicyclisation procedures for the construction of novel polycyclic heterocycles from amides possessing a pendant acetal group are re- ported. Optimisation and scoping studies are described; using this methodology, a range of known, and novel, ring-fused heterocyclic systems have been prepared, some in enantiomerically pure form.
报道了二
水合
氯化锡(II)介导的脱
缩醛化-双环化过程,用于从具有侧缩
缩醛基团的酰胺构建新型多环杂环。描述了优化和范围研究;使用这种方法,已经制备了一系列已知的和新颖的稠环杂环系统,其中一些是对映体纯的形式。