In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 4100-80-5, name is 3-Methyldihydrofuran-2,5-dione, introducing its new discovery. SDS of cas: 4100-80-5
The zeolite-catalysed acylation of anisole with methylsuccinic anhydride gave a mixture of products. The main component was 4-hydroxy-4,4-bis-(4-methoxyphenyl)-2-methyl-gamma-butyrolactone, which was isolated in 25% yield; the expected keto acids were not formed. In the zeolite-catalysed reaction between 3-(4-methoxybenzoyl)-2-methylpropionic acid and anisole, the gamma-butyrolactone was isolated in 82% yield, indicating that the initially formed keto acid undergoes cyclisation to the lactone. When these reactions were performed with a zeolite deactivated with triphenylphosphine, the lactone was not formed, suggesting that acid sites on the external surface of the zeolite catalyse these reactions. Acta Chemica Scandinavica 1997.
We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 4100-80-5, and how the biochemistry of the body works.SDS of cas: 4100-80-5
Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem