A Facile Synthesis of 1,1-Difluoroallenes from Commercially Available 1,1,1-Trifluoro-2-iodoethane
作者:Junji Ichikawa、Ken Oh、Kohei Fuchibe
DOI:10.1055/s-0030-1258438
日期:2011.3
1,1-Difluoroallenes are synthesized in good yield via zinc-promoted 1,2-elimination of 3,3-difluoro-2-iodoallylic acetates, which are prepared by the reaction of aldehydes or ketones with 1-iodo-2,2-difluorovinyllithium, generated from commercially available 1,1,1-trifluoro-2-iodoethane.
1,1-二氟烯烃通过锌促进的1,2-消除反应,以良好的产率合成,所用的起始物为3,3-二氟-2-碘烯基乙酸酯,这些乙酸酯通过醛或酮与从商业可得的1,1,1-三氟-2-碘乙烷生成的1-碘-2,2-二氟乙烯锂反应制备。