
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.
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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)