A New Method of Dihalocarbene Generation Based on Trihalomethylmetal Compounds

D Seyferth, J Yick-Pui Mui, ME Gordon…

Index: Seyferth,D. et al. Journal of the American Chemical Society, 1965 , vol. 87, # 3 p. 681 - 682

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Citation Number: 48

Abstract

It has been reported that trimethyl (trifluoromethy1)-tin releases difluorocarbene at 150".'We report here a procedure that allows utilization of this compound in CF2 generation at 80" in a nonbasic medium to give, in the presence of olefins, gem-difluorocyclopropanes in very good yield. This procedure also can be used to generate CClz from C6HSHgCC12X (X= C1 and Br) at room temperature. Several examples serve to illustrate the utility of our method. ...