1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU): a highly efficient catalyst in glycerol carbonate synthesis

Title1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU): a highly efficient catalyst in glycerol carbonate synthesis
Publication TypeJournal Article
Year of Publication2014
AuthorsMunshi, MK, Gade, SM, Mane, MV, Mishra, D, Pal, S, Vanka, K, Rane, VH, Kelkar, AA
JournalJournal of Molecular Catalysis A-Chemical
Date PublishedSEP
Type of ArticleArticle
KeywordsDBU, Glycerol, Glycerol carbonate, transesterification

Transesterification of dimethyl carbonate (DMC) with glycerol (GLY) was investigated using various amines as catalysts. Amidines like 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) were found to be the best catalysts for this reaction. Best results: 98% conversion of GLY with 96% selectivity to GC (TON: 9408), were obtained with DBU as a catalyst. Effect of various reaction conditions on activity and selectivity were investigated using DBU as catalyst. The mechanism of the reaction was investigated with the help of H-1, C-13 and N-15 NMR analysis and OFT calculations. (C) 2014 Elsevier B.V. All rights reserved.

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Chemical Engineering & Process Development