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Synthesis and characterization of arabinose-palmitic acid esters by enzymatic esterification
Ist Teil von
Molecular catalysis, 2017-05, Vol.433, p.383-390
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2017
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
[Display omitted]
•Esters of palmitic acid with L(+) arabinose have been synthesized.•The synthesis is catalysed by a lipase, therefore environmentally friendly.•Only the primary hydroxyl group is esterified.•Both reagents are from renewable source.
The direct esterification of palmitic acid with l-(+)-arabinose has been carried out. The use of Candida antartica lipase B as the catalyst and the choice of suitable solvent and experimental conditions allowed carrying out the reaction successfully. In particular 10% dimethyl-sulfoxide in tert-butanol was found to be the optimal solvent. The product has been fully characterized by means of FTIR, ESI-MS, DSC, mono and bidimensional 1H and 13C NMR. These techniques confirm that only the primary alcoholic group was involved in the esterification reaction.