Journal of organometallic chemistry

Zirconocene-catalyzed alkylative dimerization of 2-methylene-1, 3-dithiane via a single electron transfer process to provide symmetrical vic-bis (dithiane) s

S Yoshida, H Yorimitsu, K Oshima

Index: Yoshida, Suguru; Yorimitsu, Hideki; Oshima, Koichiro Journal of Organometallic Chemistry, 2007 , vol. 692, # 15 p. 3110 - 3114

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Abstract

A mixture of tertiary alkyl halide and 2-methylene-1, 3-dithiane was treated with butylmagnesium bromide in the presence of a catalytic amount of zirconocene dichloride. The reaction resulted in alkylative dimerization to yield the corresponding vic-bis (dithiane). The reaction would proceed as follows. A single electron transfer from low-valent zirconocene to alkyl halide would generate the corresponding alkyl radical. The radical ...