Anion‐Dependent Imidazolium‐Based Catalysts for Allylation of Aniline with Tunable Regioselectivity
作者:María Albert‐Soriano、Isidro M. Pastor
DOI:10.1002/adsc.202000102
日期:2020.6.15
Metal‐free catalysts based on 1,3‐bis(carboxymethyl)imidazolium halides mediate the reaction between allylic alcohols and anilines, providing the corresponding N ‐, 2‐ and 4‐allylaniline isomers selectively. The imidazolium counterion plays a crucial role in the outcome of the reaction. Thus, while the imidazolium chloride selectively provides the N ‐substituted aniline, the bromide and iodide imidazolium
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.