Glycerol diacetate

DIACETIN DIACETYL GLYCERINE DIGLYCERIDE ACETIC ACID GLYCEROL DIACETATE GLYCERYL-1,3-DIACETATE (HYDROXYMETFIYL)ETHYLENE ACETATE... 

Glycerol, decamer, deca (octadeca-9,12-dienoate). See Polyglyceryl-10 decalinoleate Glycerol diacetate. See Glyceryl diacetate Glycerol dicaprylate/caprate. See Glyceryl dicaprylate/caprate... 

CAS 25395-31-7 EINECS/ELINCS 246-941-2 Synonyms Diacetin (INCI) Diacetylglycerol Glycerin diacetate Glycerine diacetate Glycerol diacetate 1,2,3-Propanetriol, diacetate Classification Nonaromatic ester... 

Glycerol diacetate monopropionates were purified by preparative HPLC using a silica column (RI detector) and an isocratic 80/20 hexane/MrBE mobile phase [694]. Elution was complete in <20 min. Similarly, glycerol monohydroxystearate was purified on a cyanopropyl column (2 = 230nm) using a 95/5 hexane/IPA mobile phase [695]. Separation was complete in <30 min. 

The first simple method using isotopic labelling has been developed to confirm the actual and observed selectivities in the enzymatic hydrolysis of unsymmetrical diacetates and to measure the enzyme selectivity efficiency. The simple method consists of enzymatic hydrolysis of the unsymmetrical diacetate followed by labelling of the hydroxyacetate formed with CD3CO2D-DCC and enzymatic rehydrolysis of the labelled compound under identical reaction conditions. The amount of label lost, as determined by H NMR spectroscopy, directly indicates the extent of regioselective action of the enzyme. For example, enzymic hydrolysis using pig liver acetone powder (FLAP) of the racemic glycerol diacetate (208) yielded a mixture (1 9) of the 1-hydroxy ester (209) and the 2-hydroxy ester (210). Isolation of the 2-hydroxy... 

Triaceiin is about 90% glycerol triacetate and 10% diacetate. Used as a plasticizer for lacquers and as a solvent for certain gums and resins. 

Diacetals can be synthesized from bioethanol only and from bioethanol and glycerol (the co-product of the diester production) for the ether-type molecules, which could be even more interesting. 

Irreversible Transesterification. A new preparation of chiral glycerol acetonide (2,2-dimethyl-l,3-dioxolane-4-methanol) involving an enantioselective hydrolysis of 2-0-benzylycerol diacetate to the (R)-monoacetate catalyzed by a lipoprotein lipase (47) has recently been developed. In an effort to prepare the (S)-enantiomer, we have used the aforementioned irreversible transesterification reaction using isopropenyl acetate as an acylating reagent, which upon reaction gives acetone as a... 

---