作者:Valentine G. Nenajdenko、Alexey V. Shastin、Vasily N. Korotchenko、Georgy N. Varseev、Elisabeth S. Balenkova
DOI:10.1002/ejoc.200390033
日期:2003.1
A new general catalytic olefination reaction (COR) of aromatic and heteroaromatic aldehydes and ketones was applied to synthesise 2-chloro-2-fluorostyrenes. The two-stage procedure includes the transformation of carbonyl compounds into hydrazones followed by treatment with CFCl3 mediated by copper catalysis. Trichlorofluoromethane was used as a chlorofluoromethylene transfer reagent. The reaction proceeds