
Journal of Organic Chemistry p. 3017 - 3025 (2003)
Update date:2022-08-03
Topics:
Cho, Chul-Hee
Yun, Hee-Sung
Park, Kwangyong
The nickel-catalyzed cross-coupling reactions of neopentyl arenesulfonates with arylmagnesium bromides, involving nucleophilic aromatic substitution of alkyloxysulfonyl groups by aryl nucleophiles, take place in high yields. Optimal efficiencies are obtained by adding 3 + 2 equiv of the Grignard reagent to a mixture of dppfNiCl2 and the sulfonate in refluxing THF. Neopentyl arenesulfonates are useful sources of the electrophilic aryl groups in these transition metal-catalyzed cross-coupling reactions. Aryl sulfonates are inappropriate due to their ambident reactivity under the reaction conditions. This new cross-coupling reaction can be used for the creative elimination of alkyloxysulfonyl groups from aromatic compounds and for the preparation of unsymmetric terphenyls and oligophenyls.
View MoreJiaozuo Zhongwei Special Products Pharmaceutical Co.,Ltd.
website:http://www.zw-pvp.com
Contact:15302105619
Address:Jiaozuo,Henan,China (Mainland)
Shandong Yuanli Science and Technology Co., Ltd.
Contact:86-0536-6777557
Address:Zhuliu Industiral Park,Changle County
Shandong Xinke Petrochemical Co., Ltd.
Contact:+86-546-7277016
Address:Gudao Industrial Park, Hekou District, Dongying, Shandong Province, China
Dongtai Xinyuan Chemical Co., Ltd.
Contact:+86-21-56733000
Address:404F, 99Nong No.117 Zhongtan Rd. Shanghai
Hebei Kangtai Pharmaceutical Co.,Ltd
Contact:+86-0317-3512963
Address:Wugang Road,Mengcun of Cangzhou City,Hebei Province ,China
Doi:10.1021/jm0204035
(2003)Doi:10.1021/ja01510a028
(1959)Doi:10.1246/bcsj.43.3637
(1970)Doi:10.1016/S0040-4020(02)01623-X
(2003)Doi:10.1246/bcsj.37.1745
(1964)Doi:10.1021/jo9621231
(1997)