Application of 4923-87-9, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.4923-87-9, Name is 5-Bromobenzothiophene, molecular formula is C8H5BrS. In a Article£¬once mentioned of 4923-87-9
An improved synthesis of benzo[b]thiophene and its derivatives using modified montmorillonite clay catalysts
Methods for the preparation of benzothiophene (3) and its derivatives by cyclization of phenylthioacetals (1) over ZnCl2-promoted montmorillonite clay are described. Reactions in solution resulted in only moderate (ca. 50%) yields of 3 and the formation of diphenyl disulfide (4) and uncharacterized products. The production of 4 was explained by coordination of 1 via its oxygen atom to active sites of the catalyst and subsequent bimolecular processes. Good to excellent yields (67-98%) of 3 and its derivatives were obtained using vapor phase techniques at 200-300C to promote the desired intramolecular cyclizations.
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 4923-87-9, and how the biochemistry of the body works.Application of 4923-87-9
Reference£º
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem