Stereoselective Syntheses of 1,3,5-Trihydroxy-2,4-dimethylpentane Equivalents from Methyl α-Mannopyranosides
作者:Kuniaki Tatsuta、Yoshihito Koguchi、Motohiro Kase
DOI:10.1246/bcsj.61.2525
日期:1988.7
regioselectively prepared from methyl α-D- and L-mannopyranosides through the reactions of the 3,4-anhydro-2-O-mesyl- and 3,4-anhydro-2-C-methylaltropyranoside derivatives with methylmagnesium bromide and methylmagnesium chloride.
光学活性的 1,3,5-三羟基-2,4-二甲基戊烷等价物:甲基 2,4-二脱氧-2,4-二-C-甲基-α-D-ido-和talopyranosides 及其对映异构体,它们应该是适用于合成丙酸酯衍生的天然产物,通过 3,4-脱水-2-O-甲磺酰-和 3,4-脱水反应,由甲基 α-D- 和 L-吡喃甘露糖苷立体和区域选择性地制备-2-C-甲基吡喃酮衍生物与甲基溴化镁和甲基氯化镁。