Expeditious Synthesis of Phenanthridines from Benzylamines via Dual Palladium Catalysis
摘要:
A method for the synthesis of phenanthridines from benzylamines and aryl iodides which uses a dual palladium-catalyzed process is developed. The domino sequence ends via an intramolecular amination and an oxidative dehydrogenation. No protecting group or prefunctionalization of the amine is required, and the process uses dioxygen as the terminal oxidant.
Palladium-Catalyzed Domino Direct Arylation/N-Arylation: Convenient Synthesis of Phenanthridines
作者:David A. Candito、Mark Lautens
DOI:10.1002/anie.200902400
日期:2009.8.24
Domino reactions possess the ability to generate complexity from simple starting materials. Disclosed is a strategy for the dominodirectarylation/N‐arylation for the facile construction of diverse phenanthridine derivatives (see scheme; TMS=trimethylsilyl, TBDMS=tert‐butyldimethylsilyl).
A method for the synthesis of phenanthridines from benzylamines and aryl iodides which uses a dual palladium-catalyzed process is developed. The domino sequence ends via an intramolecular amination and an oxidative dehydrogenation. No protecting group or prefunctionalization of the amine is required, and the process uses dioxygen as the terminal oxidant.