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A New Way to Produce Cellobiose Carbonates Using Green Chemistry
Author(s) -
Khiari R.,
BrochierSalon M.C.,
Mhenni M. F.,
Mauret E.,
Belgacem M. N.
Publication year - 2016
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.201600430
Subject(s) - cellobiose , chemistry , green chemistry , cellulose , reagent , dimethyl carbonate , carbonate , potassium hydroxide , organic chemistry , potassium carbonate , nuclear chemistry , molecule , inorganic chemistry , supramolecular chemistry , catalysis , cellulase
The preparation of cellulose derivatives using green (i.e., environmentally friendly) reagents would improve sustainability and reduce concerns arising from the use of non‐green reagents. The objective of this work was to prepare cellobiose carbonate using a green reagent, dimethyl carbonate. The carbonation reaction was carried out in the presence of ethanolic potassium hydroxide solution and dimethyl carbonate for 6 h at a range of temperatures (25–70 °C). A cellobiose derivative was successfully prepared with a recovered yield of more than 70 % and characterized by FTIR and NMR spectroscopy techniques. The presence of a grafted disaccharide with a degree of substitution higher than 2 was determined by 13 C NMR analysis. The spectra of the prepared cellobiose carbonate exhibited peaks that were associated with cellulose molecules (C 1 –C 6 ) and corresponded to carbonate functions at around 159.4 ppm.