A general synthesis of five, six and seven-membered silasultones via dehydrative cyclisation
作者:D. Christopher Braddock、Jérôme J.-P. Peyralans
DOI:10.1016/j.tet.2005.05.042
日期:2005.7
siloxane disulphonic acids. The siloxanes are prepared by protodesilylation of the corresponding phenylsilane sulphonic acids. The sulphonate group is introduced either by free-radical sulphonation of vinyl silanes, or by SN2 sulphite displacement of a long chain alkyl chloride.
通过硅氧烷二磺酸的脱水环化,可以方便地以高收率方便地制备五,六和七元硅烷基磺内酯。硅氧烷是通过相应的苯基硅烷磺酸的去甲硅烷基化制备的。通过乙烯基硅烷的自由基磺化或通过长链烷基氯的S N 2亚硫酸盐置换引入磺酸基。