Photocatalyzed site-selective C(sp3)-H sulfonylation of toluene derivatives and cycloalkanes with inorganic sulfinates was written by Zhang, Shaonan;Cao, Shi;Lin, Yu-Mei;Sha, Liyuan;Lu, Cheng;Gong, Lei. And the article was included in Chinese Journal of Catalysis in 2022.SDS of cas: 57293-19-3 This article mentions the following:
Herein, a convenient and economic approach to site-selective C(sp3)-H sulfonylation via photo-induced HAT catalysis was reported. Employing a conjugated polycyclic quinone as a direct HAT photocatalyst, com. available inorganic sulfinates as the sulfonylation source, copper triflate as an inexpensive oxidant, a variety of toluene derivatives and cycloalkanes were converted into biol. and synthetically interesting sulfone products I [Ar = 4-MeC6H4, 4-EtC6H4, 4-MeOC6H4, etc.; R1 = H, Me; R2 = Me, Et, Ph, etc.; R3 = Ph, Et, i-Pr, etc.], II [R4 = cyclopentyl, cyclohexyl, cycloheptyl, etc.] under mild conditions. The mechanistic studies reveal that the reaction sequence involved direct HAT-induced radical formation and a subsequent copper-mediated organometallic process for the C-S bond formation. This method offered an appealing opportunity to furnish high value-added products from abundant hydrocarbon starting materials and inexpensive reagents. In the experiment, the researchers used many compounds, for example, 1-(3-Bromopropyl)-4-methoxybenzene (cas: 57293-19-3SDS of cas: 57293-19-3).
1-(3-Bromopropyl)-4-methoxybenzene (cas: 57293-19-3) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.SDS of cas: 57293-19-3
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary