Oka, Naoki published the artcileAryl Boronic Esters Are Stable on Silica Gel and Reactive under Suzuki-Miyaura Coupling Conditions, Name: 1H-Pyrazole-4-boronic acid, the publication is Organic Letters (2022), 24(19), 3510-3514, database is CAplus and MEDLINE.
A wide range of aryl boronic 1,1,2,2-tetraethylethylene glycol esters [ArB(Epin)s] were readily synthesized. Purifying aryl boronic esters by conventional silica gel chromatog. is generally challenging; however, these introduced derivatives were easily purified on silica gel and isolated in excellent yields. The purified ArB(Epin) was subjected to Suzuki-Miyaura couplings, which provided higher yields of the desired biaryl products than those obtained using the corresponding aryl boronic acids or pinacol esters.
Organic Letters published new progress about 763120-58-7. 763120-58-7 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is 1H-Pyrazole-4-boronic acid, and the molecular formula is C3H5BN2O2, Name: 1H-Pyrazole-4-boronic acid.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics