One-pot, three-component Mannich-type reaction catalyzed by functionalized ionic liquid
作者:Dong Fang、Kai Gong、Dai-zhen Zhang、Zu-liang Liu
DOI:10.1007/s00706-009-0182-y
日期:2009.11
AbstractA three-componentMannich-typereaction of aromatic aldehydes, aromatic amines, and ketones was catalyzed by a novel functionalized ionic liquid, 3-(N,N-dimethyldodecylammonium)propanesulfonic acid hydrogen sulfate ([DDPA][HSO4]) at room temperature to give various β-amino carbonyl compounds in good yields. The catalyst could be reused at least six times without noticeably reducing catalytic
Synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthene-11-ones catalyzed by biodegradable ionic liquid
作者:Dong Fang、Jin-ming Yang、Yan-fang Cao
DOI:10.1007/s11164-012-0709-4
日期:2013.4
biodegradable acyclic SO3H-functionalized ionic liquid has been used as a novel catalyst for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[ a ]xanthene-11-ones via one-pot multi-component condensation of β-naphthol, aromatic aldehydes, and cyclic 1,3-dicarbonylcompounds, under solvent-free conditions, to afford good to excellent yields ranging from 85 to 93 % within 30–60 min. After the reaction the products
摘要 一种可生物降解的无环SO 3 H-官能化离子液体已被用作一种新型催化剂,通过一锅多组分合成12-芳基-8,9,10,12-四氢苯并[ a ]氧杂蒽-11。在无溶剂条件下,β-萘酚,芳族醛和环状1,3-二羰基化合物的缩合反应可在30-60分钟内提供85%至93%的良好至极佳收率。反应后,可以简单地从反应混合物中分离出产物,并且催化剂可以循环使用几次,而催化活性没有明显降低。 图形概要
Clean Procedure for the Synthesis of α-Aminophosphonates Catalyzed by Biodegradable Ionic Liquid
作者:Dong Fang、Yanfang Cao、Jinming Yang
DOI:10.1080/10426507.2012.710679
日期:2013.7.1
Abstract A biodegradable SO3H-functionalized ionicliquid (IL) was prepared and used as the catalyst for a one-pot, three-component condensation synthesis of α-aminophosphonates from aldehydes, amines, and triethylphosphite/diethylphosphite at room temperature under solvent-free conditions or in aqueous media. The products could be simply separated from the reaction mixture and the catalyst could be