Construction of Fluorinated Benzoxathiin Skeleton by Successive Perfluorophenylthiolation/Cyclization of Activated α-Methylene Ketones by Perfluorophenyl Diethylaminosulfur Difluoride
作者:Ibrayim Saidalimu、Shugo Suzuki、Jiandong Wang、Etsuko Tokunaga、Norio Shibata
DOI:10.1021/acs.orglett.6b03875
日期:2017.3.3
fluorinated benzoxathiin (thiaflavan) skeleton 4 was directly constructed by the reaction of activated α-methylene ketones 1 such as β-keto esters, 1,3-diketone, and β-keto sulfones with a perfluorophenyl analogue of diethylaminosulfur trifluoride, C6F5-DAST, in high yields via successive perfluorophenylthiolation/cyclization reaction.
药学吸引力氟化benzoxathiin(thiaflavan)骨架4直接由活化的α亚甲基的反应构建酮1如β酮酯,1,3-二酮,并用氟化二乙氨基硫的全氟苯类似物,Cβ酮基砜6通过连续的全氟苯硫基化/环化反应以高收率获得F 5 -DAST。