Reference of 4923-87-9, Chemical Research Letters, May 2021. As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. In a article, 4923-87-9, molcular formula is C8H5BrS, introducing its new discovery.
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.Reference of 4923-87-9
Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem