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Lipase-catalysed deacetylation of androstane and pregnane derivatives: Influence of ring D substitution
(Elsevier Science, 2004-06)
A series of acetoxy derivatives of androstane and pregnane was deacetylated in organic solvents by microbial lipases. The best results were obtained with lipase from Candida antarctica (CAL B), Candida rugosa (CRL) and ...
Complete and regioselective deacetylation of peracetylated uridines using a lipase
(Springer, 2000-01)
Lipase-catalysed alcoholysis and hydrolysis of 2',3',5-tri-O- acetyluridine (1a) and 2',3',5'-tri-O-acetyl-2'-C-methyluridine (1b) were studied. Conditions for full and regioselective deacetylation of 1a and 1b are shown ...
CuFe2O4 Nanoparticles: A Magnetically Recoverable Catalyst for Selective Deacetylation of Carbohydrate Derivatives
(Springer/Plenum Publishers, 2010-09)
An efficient protocol for the rapid room temperature deacetylation of carbohydrate derivatives using CuFe2O4 nanoparticles as an inexpensive and reusable catalyst is presented. After separation of the catalyst with an ...
Deacetylation of furanosides using banana as biocatalyst
(Elsevier Science, 2007-03)
The deacylation under hydrolytic conditions of methyl 2,3,5-tri-O-acetyl-α-d-ribofuranoside, methyl 2,3,5-tri-O-acetyl-β-d-ribofuranoside, methyl 2,3,5-tri-O-acetyl-α,β-d-arabinofuranosides and alkyl 2,3,5-tri-O-acetyl-α ...
Kinetic study of the N-deacetylation of chitin extracted from crustaceans’ exoskeletons employing ion chromatographyEstudio cinético de la N-desacetilación de quitina extraída de exoesqueletos de crustáceos empleando cromatografía iónica
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2019)
Alkali process for chitin extraction and chitosan production from Nile tilapia (Oreochromis niloticus) scales
(Pontificia Universidad Católica de Valparaíso, 2017)
Deprotection of peracetylated methyl D-ribosides through enzymatic alcoholysis: Different recognition of the anomers
(Elsevier Science, 2005-08)
The anomers methyl 2,3,5-tri-O-acetyl-α-d-ribofuranoside and methyl 2,3,5-tri-O-acetyl-β-d-ribofuranoside showed a different behaviour in the Candida antarctica B lipase-catalysed alcoholysis. While the enzymatic deprotection ...
Enzyme-catalysed transformations of ent-kaurane diterpenoids
(Wiley VCH Verlag, 2005-05)
Several acetyl derivatives of linearol, atractyligenin and atractylitriol were obtained through enzyme-catalysed acetylation and deacetylation reactions. In most reactions lipases showed regio- and stereoselective behaviour, ...
The deacetylation reaction in Eucalyptus wood: Kinetics and effects on the effective diffusion
(Elsevier, 2009-04)
The removal of native acetyl groups from hardwood O-acetyl-glucuronoxylan has a strong effect on physical characteristics, accessibility and structure of this polymer. The removal also has effects on the swelling and ion ...