Abstract
A novel synthesis of fluoroolefins from trifluoromethylated compounds with organometallic reagents was developed. The reaction seems to proceed via 1,4-alkylation on imino nitrogen followed by defluorination of the trifluoromethyl group. Diethylzinc was found to be an efficient reagent for the preparation of 2-( N-aryl- N-ethyl)amino-3,3-difluoropropenoates in excellent yield. A similar synthesis of monofluoroolefin with Grignard reagent was also developed.
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