stereogenic centers in 1 were established by Sharpless asymmetric epoxidation and Sharpless asymmetric dihydroxylation. Formation of the THF-ring unit was accomplished by acid catalyzed epoxide ring opening and 5-exo cyclization reaction.
据报道,立体选择性合成了环氧
四氢呋喃(THF)1,它是一种含有单性
乙酸甘油酯的单THF和双THF通用合成物。化合物11是由
十三烷合成的,共11步,总产率为24%。通过Sharpless不对称环氧化和Sharpless不对称二羟基化反应建立了立体构象中心1的必要构型。THF环单元的形成是通过酸催化的
环氧化物开环和5- exo环化反应来完成的。