Wang, Xianjin published the artcileCatalytic Boration of Alkyl Halides with Borane without Hydrodehalogenation Enabled by Titanium Catalyst, Application of 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, the publication is Angewandte Chemie, International Edition (2021), 60(22), 12298-12303, database is CAplus and MEDLINE.
An unprecedented and general Ti-catalyzed boration of alkyl (pseudo)halides (alkyl-X, X = I, Br, Cl, OMs) with borane (HBpin, HBcat) is reported. The use of Ti catalyst can successfully suppress the undesired hydrodehalogenation products that prevail using other transition-metal catalysts. Synthetically useful alkyl boronate esters are readily obtained from various (primary, secondary, and tertiary) alkyl electrophiles, including unactivated alkyl chlorides, with tolerance of other reducing functional groups such as ester, alkene, and carbamate. Preliminary studies on the mechanism revealed a possible radical reaction pathway. Further extension of the authors’ strategy to aryl bromides is also demonstrated.
Angewandte Chemie, International Edition published new progress about 608534-44-7. 608534-44-7 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic,Boronic acid and ester,Boronate Esters,Boronic Acids,Boronic acid and ester, name is 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C22H12F6O6S2, Application of 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.
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