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Synlett 1998; 1998(1): 67-69
DOI: 10.1055/s-1998-1581
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Dimethylation and Hydrodechlorination of gem-Dichlorocyclopropanes with Grignard Reagents Promoted by Fe(III) or Co(II) Catalyst

Yoshinori Nishii* , Kazunori Wakasugi, Yoo Tanabe
  • *School of Science, Kwansei Gakuin University, 1-1-155 Uegahara, Nishinomiya, Hyogo 662, Japan; Fax +81-7 98-51-09 14
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Publication Date:
31 December 2000 (online)

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Reactions of gem-dichlorocyclopropanes with MeMgBr or t-BuMgCl were examined in the presence of Fe, Co, and Ni (group VIIIA, first transition series) catalysts. The Fe(dbm)3 catalyst promoted dimethylations of gem-dichlorocyclopropanes in the presence of 4-methoxytoluene or p-xylene. In contrast, CoCl2(dppe) conducted their hydrodechlorination.

gem-dichlorocyclopropanes - dimethylation - hydrodechlorination - Grignard reagents - metal catalyst