Highly selective multifunctional nanohybrid catalysts for the one-pot synthesis of α,β-epoxy-chalcones

被引:11
作者
Crivoi, Dana-Georgiana
Segarra, Anna M. [1 ]
Medina, Francesc [1 ]
机构
[1] Univ Rovira & Virgili, Dept Engn Quim, Ave Paisos Catalans,26,Campus Sescelades, E-43007 Tarragona, Spain
关键词
One-pot reaction; Asymmetric catalysis; Nanohybrid; Poly-L-leucine; Hydrotalcite; Chiral alpha; beta-epoxy-chalcone; CLAISEN-SCHMIDT CONDENSATION; POLY-L-LEUCINE; SOLID BASE CATALYSTS; ASYMMETRIC EPOXIDATION; ALDOL CONDENSATION; ENANTIOSELECTIVE EPOXIDATION; ACTIVATED HYDROTALCITES; PHARMACEUTICAL INTEREST; POLYAMINO-ACIDS; IONIC LIQUID;
D O I
10.1016/j.jcat.2015.11.020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An efficient one-pot heterogeneous process for producing chiral alpha,beta-epoxy-chalcones from the corresponding aldehydes and ketones, has been described. The nanohybrid materials based on poly-L-leucine immobilised into rehydrated hydrotalcites did not require any pre-activation and were easily recovered and recycled for four consecutive runs without losing their catalytic efficiency in terms of conversion, total selectivity towards the corresponding epoxy-chalcones and excellent enantioselectivity. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码:120 / 128
页数:9
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