Hydroxylation of a vitamin D A-ring fragment

被引:0
作者
Hamon, C [1 ]
Soilan-Rodriguez, JD [1 ]
Kalchhauser, H [1 ]
Reischl, W [1 ]
机构
[1] Univ Vienna, Dept Organ Chem, A-1090 Vienna, Austria
来源
MONATSHEFTE FUR CHEMIE | 1997年 / 128卷 / 12期
关键词
vitamin D; vitamin D A-ring fragment; C-1; hydroxylation; Hg(OOCCF3)(2);
D O I
10.1007/BF00807263
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
When the benzoate of (S)-(Z)-2-(5-(tert-butyldimethylsiloxy)-2-methylencyclohexyliden)-ethanol (5) is treated with 2.5 equivalents of Hg(OOCCF3)(2) in dry THF, a smooth and selective allylic hydroxylation occurs. The C-1 functionalized vitamin D A-ring synthon 6 is isolated in 65 to 70% yield in a single step.
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页码:1297 / 1300
页数:4
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