Approach to Synthesis of β-Enamino Ketones and Pyrroles Catalyzed by Gallium(III) Triflate Under Solvent-Free Conditions
作者:Jiuxi Chen、Xiaoliang Yang、Miaochang Liu、Huayue Wu、Jinchang Ding、Weike Su
DOI:10.1080/00397910902898528
日期:2009.11.5
Abstract Metal triflates have been used to catalyze synthesis of β-enamino ketones or pyrroles from amines and 1,3-dicarbonyl or 1,4-dicarbonyl compounds under solvent-free conditions, respectively. Among different metal triflates screened, 0.5 mol% Ga(OTf)3 efficiently promoted the reactions to give excellent yields. In addition, the catalyst could be recovered easily after the reactions and reused
摘要 金属三氟甲磺酸盐已用于在无溶剂条件下分别催化由胺和 1,3-二羰基或 1,4-二羰基化合物合成 β-烯氨基酮或吡咯。在筛选出的不同金属三氟甲磺酸盐中,0.5 mol% Ga(OTf)3 有效地促进了反应,获得了优异的产率。此外,催化剂在反应后很容易回收和重复使用,而不会明显损失活性。