An efficient palladium-catalyzed synthesis of unsymmetrical diaryl sulfones from aryl bromides/triflates and arenesulfinates

被引:40
作者
Cacchi, S [1 ]
Fabrizi, G [1 ]
Goggiamani, A [1 ]
Parisi, LM [1 ]
机构
[1] Univ Roma La Sapienza, Dipartimento Studi Chim & Tecnol Sostanze Biologi, I-00185 Rome, Italy
关键词
coupling; sulfones; palladium; catalysis; arenesulfinates;
D O I
10.1055/s-2003-37117
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The palladium-catalyzed coupling of arenesulfinate salts and aryl bromides or triflates provides a simple and extremely efficient route to unsymmetrical diaryl sulfones. The reaction was found to be strongly influenced by the presence of n-Bu4NCl. The ammonium salt tends to favor the formation of sulfones with neutral, electron-rich and slightly electron-poor aryl bromides or triflates and to hamper the reaction with electron-poor aryl bromides or triflates.
引用
收藏
页码:361 / 364
页数:4
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