Facile Synthesis of Azetidine Nitrones and Diastereoselective Conversion into Densely Substituted Azetidines
作者:Tyler W. Reidl、Jongwoo Son、Donald J. Wink、Laura L. Anderson
DOI:10.1002/anie.201705681
日期:2017.9.11
An electrocyclization route to azetidine nitrones from N‐alkenylnitrones was discovered that provides facile access to these unsaturated strained heterocycles. Reactivity studies showed that these compounds undergo a variety of reduction, cycloaddition, and nucleophilic addition reactions to form highly substituted azetidines with excellent diastereoselectivity. Taken together, these transformations
发现了从N-烯基硝酮到氮杂环丁烷硝酮的电环化途径,可轻松进入这些不饱和应变杂环。反应性研究表明,这些化合物经过各种还原,环加成和亲核加成反应,形成具有出色的非对映选择性的高度取代的氮杂环丁烷。综上所述,这些转化为氮杂环丁烷的合成提供了一种与传统的通过亲核取代进行环化的方法截然不同的方法,并提供了对各种未充分利用的应变杂环化合物的新途径。