Yuan, Zheliang; Wang, Hao-Yang; Mu, Xin; Chen, Pinhong; Guo, Yin-Long; Liu, Guosheng published an article on February 25 ,2015. The article was titled 《Highly Selective Pd-Catalyzed Intermolecular Fluorosulfonylation of Styrenes》, and you may find the article in Journal of the American Chemical Society.Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthroline The information in the text is summarized as follows:
A novel Pd-catalyzed intermol. regio- and diastereoselective fluorosulfonylation of styrenes has been developed under mild conditions. This reaction exhibits a wide range of functional-group tolerance in styrenes and arylsulfinic acids to afford various β-fluoro sulfones. Preliminary mechanistic study reveals an unusual mechanism, in which a high-valent L2PdIIIF species side-selectively reacts with a benzylic carbon radical to deliver a C-F bond. This pathway is distinct from a previously reported radical fluorination reaction. Thus, e.g., treatment of E/Z-β-methylstyrene with NFSI, p-tert-Bu-C6H4SO2H, [Pd(MeCN)4](BF4)2 and 3,4,7,8-tetramethyl-1,10-phenanthroline afforded β-fluoro sulfone I (64% from E, 73% from Z, dr > 20:1). In the experimental materials used by the author, we found 4,7-Bis(4-bromophenyl)-1,10-phenanthroline(cas: 97802-08-9Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthroline)
4,7-Bis(4-bromophenyl)-1,10-phenanthroline(cas: 97802-08-9) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals.Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthroline The most pervasive is the naturally produced bromomethane.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary