Directing Abilities of Alcohol-Derived Functional Groups in the Hydroformylation of Olefins
作者:Li Ren、Cathleen M. Crudden
DOI:10.1021/jo001751m
日期:2002.3.1
hydroformylation syn to the functional group, which would suggest a directing effect. However, hydroformylation of 3-methylene-1-cyclohexanol derivatives occurs on the face opposite to the directing group in the major isomer. These data, in addition to the results of hydroformylation of 1-methyl-2-methylenecyclohexane, suggest that inherent conformational preferences are of significant importance in determining
已经研究了使用阳离子和中性铑配合物的烯丙基和均烯丙基醇及其衍生物的加氢甲酰化。在1-甲氧基甲氧基-2-亚甲基环己烷的反应中观察到最高的非对映选择性(87:13)。在TBDMS保护的醇的反应中获得更高的产率和相似的选择性。主要的非对映异构体是由加氢甲酰基化合成到官能团而引起的,这将表明有指导作用。但是,3-亚甲基-1-环己醇衍生物的加氢甲酰化发生在主要异构体中与导向基团相反的面上。这些数据,除了1-甲基-2-亚甲基环己烷的加氢甲酰化结果外,