Silicon-directed stereocontrolled cyclization. Possible route to functionalized tetrahydrofurans
作者:F.L. van Delft、auG.A. van der Marel、J.H. van Boom
DOI:10.1016/s0040-4039(00)79973-4
日期:1994.2
Cyclization of 3,4,6-tri-O-benzyl-1-deoxy-1-phenyldimethylsilyl-L-glucitol using a slight excess of BF3Et2O or a catalytic amount of H2SO4 gives access to the 2,5-anhydro-L-glucitol or 2,5-anhydro-L-mannitol derivative, respectively.
使用稍微过量的BF 3 Et 2 O或催化量的H 2 SO 4将3,4,6-三-O-苄基-1-脱氧-1-苯基二甲基甲硅烷基-L-葡萄糖醇环化,可得到2 5-脱水-L-葡萄糖醇或2,5-脱水-L-甘露醇衍生物。