Difluorocarbene Chemistry: Synthesis of <i>gem</i>-Difluorocyclopropenyl Ketones and <i>gem</i>-Difluorinated Dihydrofurans
作者:Qing-Yun Chen、Zhan-Ling Cheng
DOI:10.1055/s-2006-926266
日期:——
The cycloaddition reactions of difluorocarbene, generated by the decomposition of FSO2CF2CO2SiMe3, with α,β-acetylenic ketones give gem-difluorocyclopropenyl ketones in good yields. Treatment of these gem-difluorocyclopropenyl ketones with aqueous potassium carbonate results in the formation of gem-difluorinated dihydrofurans.
Chemistry of difluorocarbene adducts: Stereospecific synthesis of conjugated fluoroolefins and 1,3-azabutadienes from gem-difluorocyclopropenyl ketones
作者:Zhan-Ling Cheng、Qing-Yun Chen
DOI:10.1016/j.jfluchem.2006.03.020
日期:2006.7
Treatment of gem-difluorocyclopropenyl ketones with malonate anion, amine gave stereospecifically conjugated fluoroolefins and azabutadienes, respectively.