Enantioconvergent transformation of racemic cis-Dialkyl substituted epoxides to (R,R) threo diols by microsomal epoxide hydrolase catalysed hydrolysis
作者:Giuseppe Bellucci、Cinzia Chiappe、Antonio Cordoni、Giovanni Ingrosso
DOI:10.1016/s0040-4039(96)02094-1
日期:1996.12
Both enantiomers of (±)-9,10-epoxystearic acid (1b), cis-(±)-5,6-epoxyhexadecane (1c) and cis-(±)-11,12-epoxyhexadecan-1-ol (1d) as well as the meso cis-9,10-epoxyoctadecane (1a) undergo microsomal epoxide hydrolase catalyzed hydration at the (S) carbon to give the corresponding (R,R) threo diols in a >90 e.e.
(±)-9,10-环氧硬脂酸(1b),顺式-(±)-5,6-环氧十六烷(1c)和顺式-(±)-11,12-环氧十六烷-1-醇(1d)的两种对映体。以及内消旋顺式-9,10-环氧十八烷(1a)在(S)碳上经历微粒体环氧水解酶催化的水合作用,从而在> 90 ee中得到相应的(R,R)苏糖醇