Palladium-catalyzed arylation of ureas

被引：20
|
作者：
Artamkina, GA [1 ]
Sergeev, AG [1 ]
Beletskaya, IP [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119899, Russia
来源：
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY | 2002年 / 38卷 / 04期
关键词：
D O I：
10.1023/A:1016503307552
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Urea arylation with aryl halides in the presence of catalyst precursor Pd(2)dba(3)-CHCl3/Xantphos and Cs2CO3 in dioxane at 100degreesC affords symmetrical N,N-diarylureas in 64-92% yield. With the same catalytic system the reaction between N-phenylurea and aryl bromides containing electron-withdrawing substituents in the para-position provided N-aryl-N'-phenylureas in 64-91% yields.
引用
收藏
页码：538 / 545
页数：8
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