Title of article :
Palladium-catalyzed reaction of aryl halides with ureas
Author/Authors :
Artamkina، نويسنده , , Galina A and Sergeev، نويسنده , , Alexey G and Beletskaya، نويسنده , , Irina P، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2001
Abstract :
A new method for the palladium-catalyzed arylation of ureas is described. The coupling reaction of urea and phenylurea with aryl halides containing electron-withdrawing groups in the p-position in dioxane in the presence of 0.5–1.0 mol% of Pd2dba3·CHCl3, Xantphos and Cs2CO3 as a base gives N,N′-diarylureas in yields of 64–92%.
Keywords :
Catalysis , palladium and compounds , aryl halides , arylation , Ureas
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
