An Intermolecular Hydroarylation of Highly Deactivated Styrenes Catalyzed by Re2O7/HReO4 in Hexafluoroisopropanol was written by Hu, Liqun;Liu, Yibing;Fang, Xiong;zheng, Yuzhu;Liao, Rong-zhen;Li, Man;Xie, Youwei. And the article was included in ACS Catalysis in 2022.Application In Synthesis of 2-Bromo-4-(trifluoromethyl)benzaldehyde This article mentions the following:
Here, authors describe an activation mode for unactivated alkenes on the basis of a synergy between Re2O7/HReO4 and hexafluoroisopropanol (HFIP). Highly electron-deficient styrenes have been activated to effect a challenging intermol. hydroarylation with different arenes to give a variety of diarylalkanes in high efficiency. This method is characterized by mild reaction condition, broad substrate scope, high chem. yields, and minimal waste generation. The potential synthetic application of this methodol. was exemplified by the efficient synthesis of a retinoic acid receptor (RAR) agonist. DFT calculations and deuterium-labeling experiments were conducted to elucidate the reaction mechanism, and both confirmed the critical role of HFIP, which significantly reduced the energetical barriers for several key steps of this transformation via a network of hydrogen bonding to perrhenate anion with two equivalent of HFIP. In the experiment, the researchers used many compounds, for example, 2-Bromo-4-(trifluoromethyl)benzaldehyde (cas: 85118-24-7Application In Synthesis of 2-Bromo-4-(trifluoromethyl)benzaldehyde).
2-Bromo-4-(trifluoromethyl)benzaldehyde (cas: 85118-24-7) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. 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.Application In Synthesis of 2-Bromo-4-(trifluoromethyl)benzaldehyde
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary