Brønsted Acid‐Catalyzed Asymmetric Ring‐Closing Alkylation of Inert N‐substituted Pyrroles with α, β‐Unsaturated Ketones
作者:Zhao Wei、Jinlong Zhang、Huameng Yang、Gaoxi Jiang
DOI:10.1002/adsc.201900546
日期:2019.8.21
A Chiral Brønsted acid catalyzed asymmetric intramolecular ring‐closing alkylation of inert pyrroles with α, β‐unsaturated ketones has been developed. This approach gave a wide range of 4‐phenyl‐4,5‐dihydro‐6H‐benzo[f]pyrrolo[1,2‐a]azepin‐6‐ones in high yields with good enantioselectivities under mild reaction conditions.
已开发出一种手性布朗斯台德酸与α,β-不饱和酮催化的惰性吡咯分子的不对称分子内闭环烷基化反应。该方法在温和的反应条件下,以高收率和良好的对映选择性,得到了范围广泛的4-苯基-4,5-二氢-6H-苯并[f]吡咯并[1,2-a]氮杂环庚烷-6-酮。