YTTERBIUM PERFLUOROOCTANESULFONATE-CATALYZED KNOEVENAGEL CONDENSATION IN A FLUOROTJS BIPHASIC SYSTEM
作者:Wen-Bin Yi、Ya-Qing Yin、Chun Cai
DOI:10.1080/00304940709458582
日期:2007.2
handling, robustness for recycling and high solubility in fluorous solvent.8-'0 A catalytic amount of RE(OPf), successfully promotes several synthetically useful reactions such as Friedel-Crafts acylation l 1 and alkylation," aldol condensation,6 nitration," Mannich reaction I 3 and Diels-Alder reactions.8 The catalyst immobilized in the fluorous phase was recovered by simple phase separation and reused