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Recyclable Bifunctional Polystyrene and Silica Gel‐Supported Organocatalyst for the Coupling of CO 2 with Epoxides
Author(s) -
Kohrt Christina,
Werner Thomas
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201500128
Subject(s) - bifunctional , chemistry , catalysis , polystyrene , substrate (aquarium) , selectivity , salt (chemistry) , coupling reaction , bifunctional catalyst , filtration (mathematics) , solvent , ammonium , heterogeneous catalysis , polymer chemistry , organic chemistry , silylation , polymer , oceanography , statistics , mathematics , geology
A bifunctional ammonium salt covalently bound to a polystyrene or silica support proved to be an efficient and recyclable catalyst for the solvent‐free synthesis of cyclic carbonates from epoxides and CO 2 . The catalyst can be easily recovered by simple filtration after the reaction and reused in up to 13 consecutive runs with retention of high activity and selectivity even at 90 °C. The scope and limitations of the reaction has been evaluated in terms of reaction conditions and substrate scope.