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Issue 9, 2014
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Rational investigations in the ring opening of cyclic carbonates by amines

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Abstract

Non-isocyanate polyurethanes (NIPUs) constitute a promising alternative for more classical polyurethanes (PUs) as they may display mechanical properties that can match those of PUs and their synthesis does not involve the use of toxic isocyanates. Yet, because of the lower reactivity of carbonates versus isocyanates, the synthesis of NIPUs is not straightforward and generally requires the use of a catalyst. Recently, several groups have reported on the use of different ranges of catalysts for promoting the nucleophilic attack of the amine on the carbonate. However, many of these studies involve the use of highly reactive amine and/or carbonate proscribing a complete panorama of the potentialities of the reaction. Herein, we propose a rational study of the catalyzed aminolysis of four representative cyclic carbonates that reveals that the thiourea organocatalyst 1 outperforms in many aspects, classical inorganic or other organic catalysts.

Graphical abstract: Rational investigations in the ring opening of cyclic carbonates by amines

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Publication details

The article was received on 03 Jun 2014, accepted on 16 Jul 2014 and first published on 16 Jul 2014


Article type: Paper
DOI: 10.1039/C4GC01032A
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Citation: Green Chem., 2014,16, 4286-4291
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    Rational investigations in the ring opening of cyclic carbonates by amines

    M. Blain, L. Jean-Gérard, R. Auvergne, D. Benazet, S. Caillol and B. Andrioletti, Green Chem., 2014, 16, 4286
    DOI: 10.1039/C4GC01032A

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