Variation of xantphos-based ligands in the palladium-catalyzed reaction of aryl halides with ureas
AG Sergeev, GA Artamkina, IP Beletskaya
Index: Sergeev; Artamkina; Beletskaya Russian Journal of Organic Chemistry, 2003 , vol. 39, # 12 p. 1741 - 1752
Full Text: HTML
Citation Number: 14
Abstract
Abstract A series of Xantphos-based ligands containing various substituents in the diphenylphosphino groups were synthesized, and their effect on the product yield and ratio in the palladium-catalyzed arylation of ureas with nonactivated aryl halides was studied. The arylation of urea and phenylurea in the presence of Pd 2 (dba) 3-CHCl 3, 3, 5-(CF 3) 2 Xantphos, and Cs 2 CO 3 in dioxane at 100° C gave the corresponding N, N'-diarylureas ...
Related Articles:
[Nasrollahzadeh, Mahmoud; Azarian, Abbas; Ehsani, Ali; Zahraei, Ali Tetrahedron Letters, 2014 , vol. 55, # 17 p. 2813 - 2817]
[Chen, Lei; Yu, Guang-Ao; Li, Fang; Zhu, Xiaolei; Zhang, Bei; Guo, Rui; Li, Xiaozhi; Yang, Qihua; Jin, Shan; Liu, Chenchen; Liu, Sheng-Hua Journal of Organometallic Chemistry, 2010 , vol. 695, # 14 p. 1768 - 1775]
[Tsukada, Naofumi; Ohnishi, Nozomi; Aono, Shiori; Takahashi, Fusako Organometallics, 2012 , vol. 31, # 21 p. 7336 - 7338]
Cathodic reduction of diazonium salts in aprotic medium
[Barba, Fructuoso; Batanero, Belen; Tissaoui, Khalil; Raouafi, Noureddine; Boujlel, Khaled Electrochemistry Communications, 2010 , vol. 12, # 7 p. 973 - 976]
Hartwig–Buchwald Amination on Solid Supports: a Novel Access to a Diverse Set of 1 H-Benzotriazoles
[Kulagowski, Janusz J.; Moody, Christopher J.; Rees, Charles W. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1985 , p. 2725 - 2732]