Enantiospecific synthesis of (R-(+)-α-lipoic acid from d-glucose
作者:A.V. Rama Rao、Mukund K. Gurjar、Kamini Garyali、T. Ravindranathan
DOI:10.1016/0008-6215(86)80035-0
日期:1986.4
Abstract The first enantiospecificsynthesis of natural ( R )-(+)-α-lipoic acid in 13 steps starting from d -glucose is described.
摘要描述了从d-葡萄糖开始的13个步骤中天然(R)-(+)-α-硫辛酸的第一个对映体特异性合成。
Enantioselective synthesis of R-(+)-α and S-(−)-α-lipoic acid
作者:Subhash P Chavan、Cherukupally Praveen、G Ramakrishna、U.R Kalkote
DOI:10.1016/j.tetlet.2004.06.027
日期:2004.7
An efficient synthesis of α-lipoic acid from the readily available cis-2-butene-1,4-diol employing a Claisen orthoester rearrangement and Sharpless asymmetric dihydroxylation as the key steps, is described.
Stereochemical control of yeast reductions: Synthesis of R-(+)-α-lipoic acid
作者:Aravamudan S. Gopalan、Hollie K. Jacobs
DOI:10.1016/s0040-4039(00)76176-4
日期:1989.1
bakers' yeast was found to be influenced by the nature of the ester group. The octyl ester was reduced in 82%ee and 77% chemical yield to the corresponding S alcohol, which was converted to R-(+)-α-lipoicacid ().
Bakers' yeast reduction of alkyl 6-chloro-3-oxohexanoates: synthesis of (R)-(+)-α-lipoic acid
作者:Aravamudan S. Gopalan、Hollie K. Jacobs
DOI:10.1039/p19900001897
日期:——
their reduction with bakers' yeast studied. The enantioselectivity of these reductions was found to be influenced by the nature of the ester alkoxy substituent. The ethyl ester was reduced to the (3R)-6-chloro-3-hydroxy-hexanoate (49% yield, 30% e.e.) while the octyl ester gave the (3S)-6-chloro-3-hydroxyhexanoate (62% yield, 90% e.e.). The latter product was then converted into (R)-(+)-α-lipoic acid