Deoxygenation of the 1,2-glycol (±)-5 was achieved at the position adjacent to the heterocycle through the cyclic carbonate (±)-14, providing the monohydroxy compound 6. This new method of regioselective deoxygenation was employed for the first synthesis of β-hydroxywybutines : oxidation of the methyl butenoate 7 with osmium tetroxide, followed by deoxygenation through the cyclic carbonates (19 and
在与杂环通过环状
碳酸酯(±)-14相邻的位置上实现了1,2-
乙二醇(±)-5的脱氧,得到了单羟基化合物6。这种新的区域选择性脱氧方法被用于β-羟基
丁酮的首次合成:用四氧化氧化
丁烯酸甲酯7,然后通过环状
碳酸酯(19和20)脱氧,得到2的两个非对映异构体。