Application of 4971-56-6, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 4971-56-6, molcular formula is C4H4O3, introducing its new discovery.
Enantiomerically pure gamma-butyrolactones in natural products synthesis
Stereochemically defined gamma-butyrolactones have served as key building blocks in the syntheses of many types of natural products, including alkaloids, macrocyclic antibiotics, lignan lactones, pheromones, anti-leukemics, and flavor components. Accordingly, there are a large number of methods for the enantioselective preparation of substituted gamma-butyrolactones: from simple natural products such as amino acids, tartaric acid, ascorbic acids, carbohydrates, or ribonolactones; from chiral sulfoxides, epoxides, or substituted acetylenic acids; and by various enzymatic or synthetic reductions, oxidations, and hydrolyses. This review will summarize these enantioselective methods of lactone synthesis and for each briefly show how the resultant lactone fits into the synthetic scheme for a particular natural product synthesis.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 4971-56-6 is helpful to your research. Application of 4971-56-6
Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem