Nickel-catalyzed cross-coupling of neopentyl arenesulfonates with methyl and primary alkylmagnesium bromides.
[reaction: see text] Neopentyl arenesulfonates were reacted with methyl and primary alkylmagnesium bromides in the presence of dppeNiCl(2), via the nucleophilic aromatic substitution of neopentyloxysulfonyl groups by the primary alkyl nucleophiles, to produce the corresponding alkylarenes in good yields. This result shows that the alkyloxysulfonyl group might be a suitable alternative to halides and triflate in some circumstances.
Cho
Chul-Hee
CH
Department of Chemical Engineering, Chung-Ang University, Heukseok-dong 221, Dongjak-gu, Seoul 156-756, South Korea.
Sun
Myungchul
M
Seo
Yong-Seok
YS
Kim
Chul-Bae
CB
Park
Kwangyong
K