The author of 《Catalyst- and solvent-free ipso-hydroxylation of arylboronic acids to phenols》 were Yang, Xiufang; Jiang, Xulu; Wang, Weitao; Yang, Qi; Ma, Yangmin; Wang, Kuan. And the article was published in RSC Advances in 2019. Category: ethers-buliding-blocks The author mentioned the following in the article:
A catalyst-free method for the hydroxylation of arylboronic acids to form the corresponding phenols I [R = 2-Me, 4-MeO, 4-t-Bu, etc.] with sodium perborate as the oxidant was developed using water as the solvent. Under the reaction conditions, the yield of phenol reached 92% at only 5 min. Moreover, the reaction could be conducted without a catalyst under the solvent-free condition, the efficiency of which was as high as that of a liquid-phase reaction. Using a microcalorimeter, the reaction was found to be an exothermic reaction. The reaction mechanism was investigated and understood via DFT calculations, which revealed that it was a nucleophilic reaction. In the part of experimental materials, we found many familiar compounds, such as m-Methoxyphenol(cas: 150-19-6Category: ethers-buliding-blocks)
m-Methoxyphenol(cas: 150-19-6) may be used as an analytical standard for the determination of the analyte in wine, coffee beans, wood samples, and mainstream smoke by gas chromatography (GC) based techniques.Category: ethers-buliding-blocks
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem