Epoxide Hydrolase-Catalyzed Enantioselective Synthesis of Chiral 1,2-Diols via Desymmetrization of <i>m</i><i>eso</i>-Epoxides
作者:Lishan Zhao、Bin Han、Zilin Huang、Mark Miller、Hongjun Huang、Dan S. Malashock、Zuolin Zhu、Aileen Milan、Dan E. Robertson、David P. Weiner、Mark J. Burk
DOI:10.1021/ja0466210
日期:2004.9.1
The discovery, from nature, of a diverse set of microbial epoxide hydrolases is reported. The utility of a library of epoxide hydrolases in the synthesis of chiral 1,2-diols via desymmetrization of a wide range of meso-epoxides, including cyclic as well as acyclic alkyl- and aryl-substituted substrates, is demonstrated. The chiral (R,R)-diols were furnished with high ee's and yields. The discovery
据报道,从自然界中发现了多种微生物环氧化物水解酶。证明了环氧化物水解酶库在通过广泛的内消旋环氧化物(包括环状和非环状烷基和芳基取代底物)的去对称化合成手性 1,2-二醇中的效用。手性 (R,R)-二醇具有高 ee 和产率。还描述了第一个微生物环氧化物水解酶的发现,提供了互补 (S,S)-二醇。
A Practical Synthesis of the F-Ring of Halichondrin B via Ozonolytic Desymmetrization of a<i> C</i><sub>2</sub>-Symmetric Dihydroxycyclohexene
作者:Lei Jiang、Joseph R. Martinelli、Steven D. Burke
DOI:10.1021/jo026302w
日期:2003.2.1
one-pot Criegee ozonolysis/acylation protocol to afford acetal-lactone 2. Installation of the allyl side chain on the convex face of the bicyclicsystem and subsequent reduction provided the desired tetrahydrofuran 4 with the correct relative and absolute stereochemistries. Simple functional group manipulations led to the desired F-ring module 3 of halichondrin B.
The absolute configurations of anti-benzene and anti-naphthalene 1,2:3,4-dioxides
作者:Masato Koreeda、Minoru Yoshihara
DOI:10.1039/c39810000974
日期:——
Optically active anti-1,2 : 3,4-dioxides of benzene and naphthalene have been synthesized and their absoluteconfigurations assigned using the exciton chirality c.d. method.
Highly enantio- and diastereo-selective synthesis of C2-symmetric 3,5-cyclohexadiene-1,2-diol and D2-symmetric cyclohexane-1,2,4,5-tetrol
作者:Hiroshi Suemune、Atsushi Hasegawa、Kiyoshi Sakai
DOI:10.1016/0957-4166(94)00350-k
日期:1995.1
Highly enantio- and diastereo-selective synthesis of C-2-symmetric 3,5-cyclohexadiene-1,2-diol 5 and D-2-symmetric cyclohexane-1,2,4,5-tetrol related compounds 7a,b, 10, 11 has been achieved using optically active 4-cyclohexene-1,2-diol (S,S)-1c prepared by an enzymatic procedure.