N -Heterocyclic carbene-palladium(II)-1-methylimidazole complex catalyzed α-arylation of symmetric dialkyl ketones with aryl chlorides
作者:Zheng-Kang Xiao、Hui-Ying Yin、Jian-Mei Lu
DOI:10.1016/j.ica.2014.07.061
日期:2014.11
N-Heterocyclic carbene-palladium(II)-1-methylimidazole [NHC-Pd(II)-Im] complex 1 showed efficient catalytic activity toward alpha-arylation of symmetric dialkyl ketones under mild conditions. It was found that the ratio of aryl chlorides and ketones drastically affected the reaction. When the ratio of aryl chlorides and ketones was 1:2, mono-arylated products can be obtained in good to high yields as the sole; while that of aryl chlorides and ketones was changed to 1:0.7, di- and mono-arylated products were obtained in good to high total yields at the same time, with the former as the major. (C) 2014 Elsevier B.V. All rights reserved.
US5629200A
申请人:——
公开号:US5629200A
公开(公告)日:1997-05-13
N-Heterocyclic Carbene-Palladium(II)-1-Methylimidazole Complex Catalyzed α-Arylation of Ketones with Aryl Chlorides
作者:Li-Xiong Shao、Zheng-Kang Xiao
DOI:10.1055/s-0031-1289698
日期:2012.3
An easily available NHC-Pd(II)-Im (NHC = N-heterocyclic carbene, Im = 1-methylimidazole) complex was found to be an efficient catalyst for the α-arylation reaction between ketones and aryl chlorides. Under the optimal conditions, all reactions proceeded smoothly to give the desired products in good to high yields within hours.