An unprecedented dehydrative C–C bond formation between unprotected anilines with benzyl alcohols is disclosed. Re2O7 catalyst (5 mol %) at elevated reaction temperature (80 °C) provided C-benzylanilines with high to excellent yields and with good chemoselectivities (over N-alkylation). A probable mechanism has been proposed based on mechanistic studies.
Palladacycle‐Catalyzed Tandem Allylic Amination/Allylation Protocol for One‐Pot Synthesis of 2‐Allylanilines from Allylic Alcohols
作者:Ke Chen、Yongxin Li、Sumod A. Pullarkat、Pak‐Hing Leung
DOI:10.1002/adsc.201100424
日期:2012.1
An efficient methodology involving the predominant formation of CC bonds is described for the first direct synthesis of 2‐allylanilines from allylic alcohols via a one‐pot tandem allylic amination/allylation protocol catalyzed by a palladacycle under mild conditions without the requirement for additional activators.