Huang, Yen-Kai; Tsai, Shau-Wei published an article about the compound: (S)-Methyl 3-hydroxybutanoate( cas:53562-86-0,SMILESS:C[C@H](O)CC(OC)=O ).Computed Properties of C5H10O3. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:53562-86-0) through the article.
Optically pure (R)-β-butyrolactone as an important chiral building block in the syntheses of various biol. active compounds and biodegradable polymers was prepared from (R,S)-β-butyrolactone through kinetic resolution Candida antarctica lipase B (CALB) with a high enantiomeric ratio of 198 enantioselectively catalyzed the ring opening of the racemate with methanol in Me tert-Bu ether at 45 °C and yielded the remaining (R)-β-butyrolactone. A detailed kinetic anal. indicated that methanol and (R)- and (S)-Me ester all acted as competitive inhibitors for the enzyme. Comparisons of the theor. and exptl. conversions for both enantiomers were further made and elucidated. The thermodn. anal. implied the enantiomer discrimination for the transition states of both enantiomers to be entropy-driven in the temperature range investigated. Moreover, preliminary results from the lipase reusability, feed-batch operation, and remaining substrate recovery were addressed.
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Piperazine – Wikipedia,
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