A facile construction of oxygen heterocycles by the reaction of benzoxepine-4-carboxylates with dihaloalkanes and activated alkynes
作者:Veera Prasad Kasagani、Siva Hariprasad Kurma、China Raju Bhimapaka
DOI:10.1039/c9ob00769e
日期:——
This manuscript describes the preparation of heterocyclic compounds such as naphtho[1,3]-dioxoles (3a-h), [1,4]-dioxines (4a-h), [1,4]-dioxepines (5a-c), [1,4]-dioxocines (6a-c) and diethyl 2-(2-ethoxy-2-oxoethyl)naphtho[1,3]dioxoles (8a-f). These heterocyclic compounds have been achieved by the reaction of benzoxepine-4-carboxylates (1a-h) with dihaloalkanes (2a-e) and activated alkyne (7a) for the
该手稿描述了杂环化合物的制备,例如萘并[1,3]-二恶唑(3a-h),[1,4]-二恶英(4a-h),[1,4]-二氧杂庚环(5a-c), [1,4]-二氧杂环酮(6a-c)和2-(2-乙氧基-2-氧代乙基)萘二乙基[1,3]二恶唑(8a-f)。这些杂环化合物是通过苯并xepine-4-羧酸盐(1a-h)与二卤代烷烃(2a-e)和活化炔烃(7a)的首次反应获得的。这项工作代表了通过一步法形成CC和CO键来构建实用氧杂环的第一个例子。