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

Authors: Hamed Daemi, Reza Rezaieyeh Rad, Mehdi Barikani, Mehdi Adib

Abstract:
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.

Keywords:
Imidazo[1,2-a]pyridines
Cationic polyurethane
Aqueous dispersion
Thermal properties
Catalyst

Published in: Applied catalysis A: General   (Volume 468, Pages 1-474, 5 November 2013)

Publisher: Elsevier  

ISSN Information: 0926-860X

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

Bình luận của bạn

*

*

*

*

 Captcha

Gửi bình luận nhập lại