Catalytic activity of aqueous cationic polyurethane dispersions: A novel feature of polyurethanes

被引：19

作者：

Daemi, Hamed ^{[1
]}

Rad, Reza Rezaieyeh ^{[2
]}

Barikani, Mehdi ^{[3
]}

Adib, Mehdi ^{[2
]}

机构：

[1] Islamic Azad Univ, Tehran North Branch, Young Researchers & Elites Club, Tehran, Iran

[2] Univ Tehran, Univ Coll Sci, Sch Chem, Tehran, Iran

[3] Iran Polymer & Petrochem Inst, Polyurethane Dept, Tehran, Iran

来源：

APPLIED CATALYSIS A-GENERAL | 2013年 / 468卷

关键词：

Imidazo[1,2-a]pyridines; Cationic polyurethane; Aqueous dispersion; Thermal properties; Catalyst; ONE-POT SYNTHESIS; HARD SEGMENT CONTENT; CANNIZZARO REACTION; MULTICOMPONENT REACTIONS; REGIOSPECIFIC SYNTHESIS; EFFICIENT SYNTHESIS; 2-AMINOPYRIDINES; ISOCYANIDES; CATIONOMERS; TEMPERATURE;

D O I：

10.1016/j.apcata.2013.08.023

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：

Polyurethane ionomers are well-known and user-friendly polymers. Here, we introduce their catalytic activity for organic reactions as a novel aspect of these polymers. We selected an isocyanide-based multicomponent reaction for proving the catalytic activity of polyurethane ionomers. Therefore, a convenient and very mild methodology is described for the preparation of 3-aminoimidazo[1,2-a]pyridines via a three component reaction between 2-aminopyridines, aldehydes and isocyanides in the presence of a cationic polyurethane dispersion at low reaction temperatures, in short reaction times and excellent yields. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：10 / 17

页数：8

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