Recyclable Polymeric π-Acid Catalyst Effective on Mannich-Type Reaction in Water

Yukio Masaki; Kouichi Yamazaki; Hyouei Kawai; Tomoyasu Yamada; Akichika Itoh; Yoshitsugu Arai; Hiroshi Furukawa

doi:10.1248/cpb.54.591

Communications to the Editor

Recyclable Polymeric π-Acid Catalyst Effective on Mannich-Type Reaction in Water

Yukio Masaki, Kouichi Yamazaki, Hyouei Kawai, Tomoyasu Yamada, Akichika Itoh, Yoshitsugu Arai, Hiroshi Furukawa

Author information

Keywords: polymer, π-acid catalyst, aqueous media, Mannich-type reaction, recycle

JOURNAL FREE ACCESS

2006 Volume 54 Issue 4 Pages 591-593

DOI https://doi.org/10.1248/cpb.54.591

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Abstract

Polymer-supported dicyanoketene acetal (poly-DCKA-1), synthesized by copolymerization of a DCKA bearing a 4-vinylbenzyl group with ethyleneglycol dimethacrylate, was found to be an excellent recyclable catalyst for the three-component Mannich-type reaction of aldehydes, aromatic amines, and TMS enolate of ethyl isobutyrate in water as the sole solvent.

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