Construction of an isoquinolinone framework from carboxylic-ester-directed umpolung ring opening of methylenecyclopropanes
作者:Hao-Zhao Wei、Yin Wei、Min Shi
DOI:10.1039/d1cc04826k
日期:——
An interesting type of reaction involving functionalized methylenecyclopropanes (MCPs) has been revealed. Here, a nucleophilic attack of an anionic species onto a partially polarity-reversed MCP was realized by treating a neighbouring carboxylic ester tethered to the MCP and amine with KHMDS to realize an umpolung ring opening of the MCP. This work established an operationally convenient protocol for
已经揭示了一种涉及官能化亚甲基环丙烷 (MCP) 的有趣类型的反应。在这里,阴离子物质对部分极性反转的 MCP 的亲核攻击是通过用 KHMDS 处理与 MCP 相连的相邻羧酸酯和胺来实现 MCP 的 umpolung 开环来实现的。这项工作为快速构建异喹啉酮框架建立了一个操作方便的协议。