作者:Peng Zhang、Christian Wolf
DOI:10.1021/jo3017583
日期:2012.10.5
LHMDS-promoted in situ generation of difluoroenolates from readily available 1-aryl and 1-alkyl 2,2,4,4,4-pentafluorobutan-1,3-dione hydrates has been used to produce a series of pentafluorinated β-hydroxy ketones in up to 95% yield. The reaction proceeds under mild conditions, tolerates a wide range of functional groups, and is complete within 10 min. Reduction toward the corresponding 1,3-diol with DIBAL
由LHMDS促进的从容易获得的1-芳基和1-烷基2,2,4,4,4-五氟丁烷-1,3-二酮水合物中原位生成二氟烯酸酯已被用于生产一系列五氟化β-羟基酮高达95%的产量。反应在温和的条件下进行,可耐受各种官能团,并在10分钟内完成。用DIBAL还原为相应的1,3-二醇给出定量的量并有利于顺式异构体的形成。