Smooth Isoindolinone Formation from Isopropyl Carbamates via Bischler–Napieralski-Type Cyclization
作者:Satoshi Adachi、Masao Onozuka、Yuko Yoshida、Mitsuaki Ide、Yoko Saikawa、Masaya Nakata
DOI:10.1021/ol403142d
日期:2014.1.17
Isopropyl carbamates derived from benzylamines provide isoindolinones by treatment with phosphorus pentoxide at room temperature. Utility of this Bischler–Napieralski-type cyclization and a new mechanism involving a carbamoyl cation for rationalization of this smooth conversion are discussed.
衍生自苄胺的氨基甲酸异丙酯通过在室温下用五氧化二磷处理提供异吲哚啉酮。讨论了这种Bischler–Napieralski型环化的实用性以及涉及氨基甲酰基阳离子的这种平滑转化合理化的新机制。