申请人:FMC Corporation
公开号:US04059594A1
公开(公告)日:1977-11-22
Production of c-5-aralkoxy-r-2-substituted-5-alkyl-1,3-dioxanes by epoxidizing the double bond of a 2-substituted-5-alkylidene-1,3-dioxane to form a cis epoxide, hydrogenolyzing said epoxide to form a 2-substituted-5-alkyl-5-hydroxy-1,3-dioxane in which there is a cis relationship between the 5-hydroxy and the 2-substituent, and etherifying said hydroxydioxane with an aralkyl halide.
通过环氧化2-取代-5-烷基亚甲基-1,3-二氧杂环戊烷的双键形成顺式环氧化物,氢解该环氧化物形成2-取代-5-烷基-5-羟基-1,3-二氧杂环戊烷,其中5-羟基与2-取代基之间存在顺式关系,然后用芳基卤化物对该羟基二氧杂环戊烷进行醚化反应。