Asymmetric Reductive Dicarbofunctionalization of Alkenes via Nickel Catalysis was written by Anthony, David;Diao, Tianning. And the article was included in Synlett in 2020.Safety of 2-(4-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane This article mentions the following:
A summary of the efforts to control enantioselectivity for alkene RCH=CH2 [R = Ph, 4-(acetyloxy)benzen-1-yl, 1-[(4-methylbenzene)sulfonyl]-1H-indol-5-yl, etc.] and 1H-indene diarylation with a nickel catalyst was presented. This reaction is useful for preparing triarylethanes (1S/1R)-RCH(R1)CH2R1 (R1 = Ph, 4-chlorophenyl, 2H-1,3-benzodioxol-5-yl, etc.) and (1R,2R/1S,2S)-I. The selectivity is enhanced by an N-oxyl radical additive. In the experiment, the researchers used many compounds, for example, 2-(4-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 68716-49-4Safety of 2-(4-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane).
2-(4-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 68716-49-4) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Safety of 2-(4-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts