Cobalt-catalyzed trimethylsilylmethylmagnesium-promoted radical alkenylation of alkyl halides: A complement to the heck reaction
…, T Nakamura, H Yorimitsu, K Oshima…
Index: Affo, Walter; Ohmiya, Hirohisa; Fujioka, Takuma; Ikeda, Yousuke; Nakamura, Tomoaki; Yorimitsu, Hideki; Oshima, Koichiro; Imamura, Yuki; Mizuta, Tsutomu; Miyoshi, Katsuhiko Journal of the American Chemical Society, 2006 , vol. 128, # 24 p. 8068 - 8077
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Citation Number: 118
Abstract
A cobalt complex,[CoCl2 (dpph)](DPPH=[1, 6-bis (diphenylphosphino) hexane]), catalyzes an intermolecular styrylation reaction of alkyl halides in the presence of Me3SiCH2MgCl in ether to yield β-alkylstyrenes. A variety of alkyl halides including alkyl chlorides can participate in the styrylation. A radical mechanism is strongly suggested for the styrylation reaction. The sequential isomerization/styrylation reactions of cyclopropylmethyl bromide ...
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