Palladium-catalyzed Arylation of Ureas

被引：0
|
作者：
G. A. Artamkina
A. G. Sergeev
I. P. Beletskaya
机构：
[1] Lomonosov Moscow State University,
来源：
Russian Journal of Organic Chemistry | 2002年 / 38卷
关键词：
Urea; Bromide; Organic Chemistry; Dioxane; Halide;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Urea arylation with aryl halides in the presence of catalyst precursor Pd2dba3-CHCl3/Xantphos and Cs2CO3 in dioxane at 100°C 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.
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页码：538 / 545
页数：7
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