Cheng, Xinyi; Liu, Xingchen; Wang, Shengchun; Hu, Ying; Hu, Binjing; Lei, Aiwen; Li, Jie published their research in Nature Communications on December 31 ,2021. The article was titled 《Organozinc pivalates for cobalt-catalyzed difluoroalkylarylation of alkenes》.Application In Synthesis of Ethylbromofluoroacetate The article contains the following contents:
A cobalt-catalyzed regioselective difluoroalkylarylation of both activated and unactivated alkenes with solid arylzinc pivalates and difluoroalkyl bromides through a cascade Csp3-Csp3/Csp3-Csp2 bond formation under mild reaction conditions. Indeed, a wide range of functional groups on difluoroalkyl bromides, olefins, 1,3-dienes as well as (hetero)arylzinc pivalates are well tolerated by the cobalt-catalyst, thus furnished three-component coupling products in good yields and with high regio- and diastereoselectivity. Kinetic experiments compared arylzinc pivalates and conventional arylzinc halides highlighted the unique reactivity of these organozinc pivalates. Mechanistic studies strongly supported that the reaction involved direct halogen atom abstraction via single electron transfer to difluoroalkyl bromides from the in-situ formed cobalt(I) species, thus realized a Co(I)/Co(II)/Co(III) catalytic cycle. In the experiment, the researchers used Ethylbromofluoroacetate(cas: 401-55-8Application In Synthesis of Ethylbromofluoroacetate)
Ethylbromofluoroacetate(cas: 401-55-8) is a member of organofluorine compounds. Organofluorine compounds, which have carbon-fluorine bonds, show unique features such as high thermal and chemical stability, high surface activity, no light-absorbing ability, high pharmacological effect, and so on. Owing to their specific characters, they are indispensable chemicals for industry and our daily lives.Application In Synthesis of Ethylbromofluoroacetate
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary