Dimethylation and Hydrodechlorination ofgem-Dichlorocyclopropanes with Grignard Reagents Promoted by Fe(III) or Co(II) Catalyst

• DOI: 10.1055/s-1998-1581
• Publication Date: 2007-04-05T08:27:40Z
• Authors: Yoshinori Nishii; Kazunori Wakasugi; Yoo Tanabe
• Keywords: Grignard reagent; Grignard reaction

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