60456-26-0Relevant articles and documents
Enhanced catalytic activity of lipase in situ encapsulated in electrospun polystyrene fibers by subsequent water supply
Sakai, Shinji,Yamaguchi, Tetsu,Watanabe, Rie,Kawabe, Masaaki,Kawakami, Koei
, p. 576 - 580 (2010)
Rhizopus oryzae lipase prepared was immobilized in polystyrene electrospun fibers from a suspension of crude lipase powder in an N,N-dimethylformamide solution of polystyrene. The performance of the enzyme was enhanced by supplying water onto the resultant non-woven fabric. The electrospun fibers supplied with water by spraying showed 47-fold faster initial transesterification rate measured as conversion of (S)-glycidol to glycidyl n-butyrate with vinyl n-butyrate compared with a non-encapsulated crude lipase control. Before being moistened with water, the initial transesterification rate was slower than non-encapsulated lipase. The encapsulated and moistened lipase showed 77% of residual activity after 10 cycles of use.
Synthesis and enzymatic resolution of racemic 2,3-epoxy propyl esters obtained from glycerol
Araujo, Yara Jaqueline Kerber,Avvari, Naga Prasad,Paiva, Derisvaldo Rosa,De Lima, Dênis Pires,Beatriz, Adilson
supporting information, p. 1696 - 1698 (2015/03/14)
A method is described for the synthesis of (±)-2,3-epoxy propyl esters from glycerol, involving reaction of epichlorohydrin with sodium or potassium salts of carboxylic acids in the presence of TBAB as catalyst, with moderate to excellent yields. Kinetic resolution of glycidyl butyrate by lipase of Thermomyces lanuginosa has been achieved with remarkable enantiomeric excess (ee >99%) using 1,4-dioxane as a co-solvent in pure buffer solution (30 and 50 °C, pH = 7.0).
Stereoselective synthesis of (R)-glycidyl butyrate from racemic glycidyl butyrate or epichlorohydrin via hydrolytic kinetic resolution
Jiang, Chengjun,Yan, Jianbo
scheme or table, p. 242 - 243 (2012/05/19)
The differences of (R)-glycidyl butyrate synthesis via hydrolytic kinetic resolution of glycidyl butyrate directly or regioselective opening epichlorohydrin as key steps by using Jacobsen's hydrotic kinetic resolution are compared. In the view of separation problem, it is hard to get the pure (R)-glycidyl butyrate by kinetic resolution of glycidyl butyrate directly. Via kinetic resolution of epichlorohydrin, treatment with butyric acid in the presence of CrCl3 and then epoxidation with NaOH, the total yield of 38.5% and optical purity of 99% are obtained.