A NEW METHOD FOR SYNTHESIS OF ALKYLIDENE SULFONES VIA DIRECT ALKYLIDENATING REACTION OF KETONES WITH<i>GEM</i>-DIBROMOMETHYL SULFONES PROMOTED BY THE Sm/SmI<sub>2</sub>SYSTEM IN THE PRESENCE OF A CATALYTIC AMOUNT OF CrCl<sub>3</sub>
作者:Yunkui Liu、Huayue Wu、Yongmin Zhang
DOI:10.1081/scc-100000178
日期:2001.1
Alkylidene sulfones were prepared in moderate to good yields via direct alkylidenating reaction of ketones with geminal dibromomethyl sulfones promoted by Sm/SmI2 system in the presence of a catalytic amount of CrCl3 under mild conditions.
在温和条件下,在催化量的 CrCl3 存在下,通过 Sm/SmI2 系统促进的酮与孪生二溴甲基砜的直接烷基化反应,以中等至良好的收率制备亚烷基砜。