[EN] PROCESS FOR THE PREPARATION OF OPTICALLY ACTIVE 1,2-DI(FURAN-2-YL)ETHANE-1,2-DIOLS AND DERIVATES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE 1,2-DI(FURAN-2-YL)ÉTHANE-1,2-DIOLS OPTIQUEMENT ACTIFS ET DÉRIVÉS DE CEUX-CI
申请人:FUNDACIO INST CATALA D INVESTIGACIO QUIMICA
公开号:WO2013135869A1
公开(公告)日:2013-09-19
The invention relates to a process for the preparation of optically active 1,2-diol of formula (S,S)-(I), or alternatively of formula (R,R)-(I) by asymmetric transfer hydrogenation of a compound of formula (II), or a compound of formula (IV), or mixture thereof using an optically active metal compound as catalyst and a specific hydrogen source.
Bisphenols from Furfurals by Organocatalysis and Gold Catalysis
作者:A. Stephen Hashmi、J. Teles、Michael Wölfle、Wolfgang Frey
DOI:10.1055/s-2007-982569
日期:2007.7
Four different benzoins were formed from furfurals by organocatalysis with heterocyclic carbenes, reduced to the diols and converted into propargyl ethers. The gold-catalyzed cyclization -exclusively gave bisphenols of the bisdihydroisobenzofuran type.
Biomass Conversion to High Value Chemicals: From Furfural to Chiral Hydrofuroins in Two Steps
作者:Anzhelika Kabro、Eduardo C. Escudero-Adán、Vladimir V. Grushin、Piet W. N. M. van Leeuwen
DOI:10.1021/ol3018402
日期:2012.8.3
Catalytic asymmetric transfer hydrogenation of rac-furoin and furil produces hydrofuroin with up to 99% ee and 9:1 dr. This reaction provides an exceptionally easy access to optically active hydrofuroins in two straightforward steps from biomass-derived furfural (global production 200 000-300 000 t annually) using benzoin condensation.