Kraetzschmar, Felix published the artcileSelenium-Catalyzed C(sp3)-H Acyloxylation: Application in the Expedient Synthesis of Isobenzofuranones, Name: 4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-ol, the publication is Chemistry – A European Journal (2015), 21(19), 7030-7034, database is CAplus and MEDLINE.
Oxidative Se-catalyzed C(sp3)-H bond acyloxylation has been used to construct a diverse array of isobenzofuranones from simple ortho-allyl benzoic acid derivatives The synthetic procedure employs mild reaction conditions and gives high chemoselectivity enabled by an inexpensive organodiselane catalyst. E.g., in presence of N-fluorobenzenesulfonimide and PhSeSePh, C(sp3)-H acyloxylation of o-allylated benzoic acid (I) gave 81% isobenzofuranone derivative (II). The presented approach offers a new synthetic pathway toward the core structures of phthalide natural products.
Chemistry – A European Journal published new progress about 25240-59-9. 25240-59-9 belongs to alcohols-buliding-blocks, auxiliary class Boronic acid and ester,Boronic Acids,Boronate Esters, name is 4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-ol, and the molecular formula is C6H13BO3, Name: 4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-ol.
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