摘要:
chiral beta,gamma-diketo-p-tolysulfoxides were prepared in high yields by three different methods: 1,3-diketone dianions on menthyl (-)(S) p-tolysulfinate, methyl (+)(R) p-tolysulfoxide anion on beta-ketoester and finally (+)(R) p-tolysulfinyl 2-propanone dianion on carboxylic ester.