N-Heterocyclic Carbene-Palladium(II)-1-Methylimidazole Complex Catalyzed α-Arylation of Oxindoles with Aryl Chlorides and Aerobic Oxidation of the Products in a One-Pot Procedure

被引:63
作者
Xiao, Zheng-Kang [1 ]
Yin, Hui-Ying [1 ]
Shao, Li-Xiong [1 ]
机构
[1] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325035, Zhejiang, Peoples R China
关键词
CROSS-COUPLING REACTIONS; SYSTEMS;
D O I
10.1021/ol400186b
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
NHC-Pd(II)-Im complex 1 was found to be an effective catalyst for the alpha-arylation of unprotected oxindoles with aryl chlorides to give products 4 in 44-98% yields under a N-2 atmosphere. Furthermore, if the reactions were first performed under conditions identical to those for the alpha-arylation reaction for 12 hand then exposed to air for another 3 h, 3-aryl-3-hydroxy-2-oxindoles 5 can be obtained in 49-84% yields In a one-pot procedure.
引用
收藏
页码:1254 / 1257
页数:4
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