作者:Arif Music、Andreas N. Baumann、Michael Eisold、Dorian Didier
DOI:10.1021/acs.joc.7b02786
日期:2018.1.19
simplification of 2H-azetine synthesis, a regiodivergent approach to fused 2- and 3-alkylideneazetines was designed via the intermediate formation of unprecedented vinylazetine structures. Concise sequences to the latter are described from which an expected unsaturated fused ring system was isolated with very high yields and regio- and stereoselectivities by [4 + 2] cycloadditions.
继2 H-氮杂环丁烷合成的一般化和简化方面的最新进展之后,通过空前的乙烯基氮杂环丁烷结构的中间形成,设计了稠合的2-和3-烷基亚烷基氮杂环丁烷的区域发散性方法。描述了后者的简明序列,通过[4 + 2]环加成反应,从中分离出预期的不饱和稠环系统,具有很高的收率和区域和立体选择性。