Montero Bastidas, Jose R. published the artcilePara-Selective, Iridium-Catalyzed C-H Borylations of Sulfated Phenols, Benzyl Alcohols, and Anilines Directed by Ion-Pair Electrostatic Interactions, Quality Control of 1400755-06-7, the publication is Journal of the American Chemical Society (2019), 141(39), 15483-15487, database is CAplus and MEDLINE.
Para C-H borylations (CHB) of tetraalkylammonium sulfates [R4N][ArOSO3] (R = n-Pr, Bu) and sulfamates [Bu4N][ArNHSO3] have been achieved using bipyridine-ligated Ir boryl catalysts, 4,4′-R2bpy/[Ir(cod)(OMe)]2/B2pin2, yielding borylated phenols 4-(pinB)-RC6H3OH (R = halo, Me, CN, CF3, CF3O, OMe), together with minor amounts of meta-isomers. Selectivities can be modulated by both the length of the alkyl groups in the tetraalkylammonium cations and the substituents on the bipyridine ligands. Ion pairing, where the alkyl groups of the cation shield the meta C-H bonds in the counteranions, is proposed to account for para selectivity. The 4,4′-dimethoxy-2,2′-bipyridine ligand gave superior selectivities.
Journal of the American Chemical Society published new progress about 1400755-06-7. 1400755-06-7 belongs to alcohols-buliding-blocks, auxiliary class Fluoride,Boronic acid and ester,Benzene,Alcohol,Boronic Acids,Boronate Esters, name is (3-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanol, and the molecular formula is C13H18BFO3, Quality Control of 1400755-06-7.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
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