19321-40-5Relevant articles and documents
Size selectivity in lipase catalysed tetrol acylation
Happe, Manuel,Kouadio, Martial,Treanor, Christopher,Sawall, Jan-Phillip,Fornage, Antoine,Sugnaux, Marc,Fischer, Fabian
, p. 40 - 46 (2014)
Size selectivity of Candida antarctica lipase B (CAL-B) was examined in the acylation of pentaerythritol with oleic acid. Biolubricant mixtures consisting of mono-, di-, tri-, and tetraoleates were expected in variable excess. Enzymatic tetraoleate format
A catalytic synthesis of neopentyl polyol fatty acid ester method and catalyst
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Paragraph 0057-0058, (2018/04/01)
The present invention relates to a catalytic synthesis method for neopentyl polyol fatty acid ester and a catalyst. The catalytic synthesis method comprises the following step of: enabling fatty acid methyl ester to react with neopentyl polyol fatty acid ester in the presence of a catalyst, thereby obtaining a neopentyl polyol fatty acid ester product, wherein the catalyst comprises a main catalyst and a cocatalyst, and the cocatalyst is any one or a combination of carboxylates. The catalytic synthesis method has the advantages such as high catalytic efficiency, short reaction time, a simple post-treatment process, low color and luster, excellent emulsification resistance, environment friendliness and the like. The present invention further relates to a combined catalyst used for an ester exchange reaction, and an application of the combined catalyst to catalyzing ester exchange to synthesize the neopentyl polyol fatty acid ester.
Size selectivity in lipase catalysed tetrol acylation
Happe, Manuel,Kouadio, Martial,Treanor, Christopher,Sawall, Jan-Phillip,Fornage, Antoine,Sugnaux, Marc,Fischer, Fabian
, p. 40 - 46 (2014/12/10)
Size selectivity of Candida antarctica lipase B (CAL-B) was examined in the acylation of pentaerythritol with oleic acid. Biolubricant mixtures consisting of mono-, di-, tri-, and tetraoleates were expected in variable excess. Enzymatic tetraoleate formation was suppressed under solvent conditions; however, this size selectivity was lost without solvent and tetra-acylated pentaerythritol accumulated in up to 93%. The lipase caused size selectivity persisted over a broad temperature range from 35 to 95 °C. A Fischer-Speier esterification showed that substrate bulkiness was only a minor contributor to observed size selectivity. All in all, switch on/off size selectivity using CAL-B allowed to vary pentaerythritol biolubricant compositions in an unprecedented manner.