Reaction of CBrF2–CBrF2 with hydrazones of aromatic aldehydes
作者:Valentine G. Nenajdenko、Georgy N. Varseev、Vasily N. Korotchenko、Alexey V. Shastin、Elisabeth S. Balenkova
DOI:10.1016/j.jfluchem.2004.04.002
日期:2004.9
An olefination of hydrazones of aromatic aldehydes by CBrF2–CBrF2 under copper catalysis was investigated. In situ prepared aldehydes hydrazones were converted to (3-bromo-2,2,3,3-tetrafluoropropyl)arenes by reaction with CBrF2–CBrF2 in the presence of CuCl. Subsequent elimination of HF by sodium hydroxide resulted in stereospecific formation of fluorocontaining alkenes. Elimination proceeds stereoselectively