Advances in immobilized organocatalysts for the heterogeneous asymmetric direct aldol reactions
作者： Mihály Bartók
DOI: 10.1080/01614940.2015.1039432
关键词: Aldol reaction 、 Enantiomeric excess 、 Organic chemistry 、 Catalysis 、 Covalent bond 、 Yield (chemistry) 、 Ionic bonding 、 Chemistry
摘要: The aim of this article is to collect the results published from beginning (2000) on asymmetric direct aldol reactions taking place in presence immobilized chiral organocatalysts. seven groups organocatalysts discussed are: catalyzed by: (1) covalently bonded hydroxyproline organocatalysts; (2) prolinamide (3) peptide (4) other (5) by ionic groups; (6) with adsorptive bonding; and (7) types main objective based obtained using about 360 organocatalysts, bring focus catalyst systems which yield beta-hydroxyketones maximal optical purity, while keeping concentrations reaction times as low short pos...
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