2. Sharpless氧化反应的改良和改进 2.1CaH2SiO2体系(周维善) OH Ti(OPri4/Me3COOH OH D(-DET Sharpless:96h,Y%=76-80,[a]D=7.6,95%ee,2R,3s Zhou WS:8h, Y%=76, [a]D=-78 OH Ti(OPri)4/Me3COOH OH D(-DET Sharpless:72h,Y%=76-80,[ajD=+26.5,96%e.e,2S,3S Zhou ws:6h,Y%=76.4,[a]D=-7.8,2．Sharpless环氧化反应的改良和改进 2.1 CaH2 /SiO2体系（周维善） OH Ti(OPri) 4 /Me3 COOH D(-)-DET OH O Sharpless: 96h, Y%=76-80, [a]D=-7.6, 95%e.e, 2R, 3S Zhou WS: 8h, Y%=76, [a]D=-7.8, OH Ti(OPri) 4 /Me3 COOH D(-)-DET OH O Sharpless: 72h, Y%=76-80, [a]D=+26.5, 96%e.e, 2S, 3S Zhou WS: 6h, Y%=76.4, [a]D=-7.8