Catalytic Ring Expansion of Activated Heteroarenes Enabled by Regioselective Dearomatization
作者:Jiyoung Kim、Eun Jeong Yoo
DOI:10.1021/acs.orglett.1c01173
日期:2021.6.4
Catalytic ring expansion of activated heteroarenes through 1,4-dearomative addition of diazoacetates was established for the construction of various fused azepines by an elaborate control of the reaction kinetics at each step. The use of a silver catalyst was essential to drive the overall reaction for generating the desired seven-membered azepines. Because of the excellent substrate scope and selectivity
通过对每个步骤的反应动力学进行精细控制,建立了通过重氮乙酸酯的 1,4-脱芳基加成对活化的杂芳烃进行催化扩环,以构建各种稠合氮杂环庚烷。银催化剂的使用对于推动生成所需七元氮杂环庚烷的整体反应至关重要。由于出色的底物范围和选择性,所开发的方法为合成多融合氮杂环庚烷提供了一种创新方法,这是生物相关的分子。