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Reusable Mg–Al hydrotalcites for the catalytic synthesis of diglycerol dicarbonate from diglycerol and dimethyl carbonate

Paper ID Volume ID Publish Year Pages File Format Full-Text
53474 46971 2015 7 PDF Available
Title
Reusable Mg–Al hydrotalcites for the catalytic synthesis of diglycerol dicarbonate from diglycerol and dimethyl carbonate
Abstract

•Diglycerol dicarbonate has been catalytically synthesised from diglycerol.•Mg–Al hydrotalcites utilised as heterogeneous catalyst materials.•High yields achieved under mild conditions within 6 h.•Catalysts can be re-used without further activation, maintaining high activity.

Diglycerol dicarbonate, which has been highlighted as a potential monomer for the production of non-isocyanate polyurethanes, has been synthesised using as-synthesised hydrotalcites of varying magnesium-to-aluminium ratio as catalyst materials. The hydrotalcite materials were aged for two different times, influencing their crystallite size. The catalytic carbonylation of diglycerol into diglycerol dicarbonate with dimethyl carbonate as “CO” source and solvent, ran to full conversion within 6 h, with complete selectivity, operating at relatively mild temperatures. Diglycerol monocarbonate was observed as a reaction intermediate in this conversion process. The increased basicity observed with increasing Mg/Al ratio led to higher activities. The catalysts can be easily recovered and re-used without any further activation treatment, whilst still displaying their high activity.

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Keywords
Diglycerol; Diglycerol dicarbonate; Hydrotalcites; Non-isocyanate polyurethanes
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Reusable Mg–Al hydrotalcites for the catalytic synthesis of diglycerol dicarbonate from diglycerol and dimethyl carbonate
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 257, Part 2, 15 November 2015, Pages 274–280
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us