Stereoselective reduction of β hydroxyketones to 1,3-diols highly selective 1,3-asymmetric induction via boron chelates
作者:Koichi Narasaka、Fong-Chang Pai
DOI:10.1016/0040-4020(84)80006-x
日期:1984.1
Highly selective asymmetric induction can be achieved in the reduction of acyclic β-hydroxyketones via boron chelates. Treatment of β-hydroxyketones (1) with tributyl or tri-isobutylborane and successively with sodium borohydride afforded syn-1,3-diols (3) in highly stereo-selective manner, Syn -α-substituted-β -hydroxyketones (8) were also reduced to give syn, syn-1,3-diols (9) exclusively. The reaction
1,2-anti diastereoselective reduction of 2-alkyl-3-hydroxy-ketones via their silyl ethers
作者:R. Bloch、L. Gilbert、C. Girard
DOI:10.1016/0040-4039(88)85324-3
日期:1988.1
T-butyldimethylsilyl ethers of a range of acyclic 2-alkyl-3-hydroxy-ketones are reduced with lithium aluminum hydride to give with a high 1,2-antidiastereoselective induction syn,anti or anti,anti 2-alkyl-1,3-diols.
Application of a novel 1,3-diol with a benzyl backbone as chiral ligand for asymmetric oxidation of sulfides to sulfoxides
作者:Paramartha Gogoi、Trimurthulu Kotipalli、Kiran Indukuri、Somasekhar Bondalapati、Pipas Saha、Anil K. Saikia
DOI:10.1016/j.tetlet.2012.03.077
日期:2012.5
A chiral 1,3-diol with a benzyl backbone has been used for the asymmetricoxidation of sulfides to sulfoxides. Moderate to good yields and enantioselectivity (upto 87% ee) have been observed.