Highly Efficient Kinetic Resolution of Allylic Alcohols with Terminal Double Bond
作者:Francisco A. Marques、Marcos A. Oliveira、Gustavo Frensch、Beatriz Helena L. N. Sales Maia、Andersson Barison、Cesar A. Lenz、Palimecio G. Guerrero
DOI:10.2174/157017811799304151
日期:2011.12.1
In this study, the lipase-catalyzed kinetic resolution (Novozyme 435) was employed to prepare chiral allylic alcohols and acetates with terminal double bonds in enantiomeric excesses ranging from 94 to 99 %.
Kinetic resolution of allylic alcohols via stereoselective acylation catalyzed by lipase PS-30
作者:Peiran Chen、Peng Xiang
DOI:10.1016/j.tetlet.2011.08.093
日期:2011.11
By using lipase PS-30 as catalyst, the kineticresolution of a series of racemic allylic alcohols has been achieved via stereoselective acylation. The value of kinetic enantiomeric ratio (E) reached up to 968. Substituent effect is briefly discussed.
Base-Free Dynamic Kinetic Resolution of Secondary Alcohols with a Ruthenium–Lipase Couple
作者:Inyeol Yun、Jin Yong Park、Jaiwook Park、Mahn-Joo Kim
DOI:10.1021/acs.joc.9b02510
日期:2019.12.20
dynamic kineticresolution (DKR) of various secondaryalcohols by the combination of a ruthenium catalyst and an anionic surfactant-activated lipoprotein lipase. The DKR reactions performed under totally base-free conditions at room temperature provided the products of excellent enantiopurities (91-99% ee or greater) in high yields (92-99%). More importantly, the DKR of α-arylallyl alcohols was achieved
Iridium-catalyzed allylic alkylation of monosubstituted allylic acetates with azlactone, and separation of diastereoisomers by sequential aza-Cope rearrangement
The iridium-catalyzedallylicalkylation with azlactone and sequential aza-Cope rearrangement was demonstrated. The sequential reaction was effective in separating of diastereoisomers and afforded a diastereomerically pure azlactone derivative and oxazolinone derivative.