The author of 《Graphene Oxide as a Carbocatalyst for Sustainable ipso-Hydroxylation of Arylboronic Acids: A Simple and Straightforward Strategy To Access Phenols》 were Karthik, Murugan; Suresh, Palaniswamy. And the article was published in ACS Sustainable Chemistry & Engineering in 2019. COA of Formula: C5H6BNO2 The author mentioned the following in the article:
A metal-free and straightforward protocol for the synthesis of phenols from aryl and heteroaryl boronic acids has been demonstrated using graphene oxide as a carbocatalyst. This sustainable ipso-hydroxylation takes place under mild conditions using aqueous H2O2 as an oxidant in a water medium in a short time under organocatalytic and base-free conditions. The control experiments reveal that the presence of carboxyl groups promotes ipso-hydroxylation. The developed methodol. offers GO as a benign solid-acid catalyst with good sustainability which can be reused several times without significant loss in its catalytic activities; this was proven by the Fourier transform IR and powder X-ray diffraction studies of the reused catalyst. In the experiment, the researchers used Pyridin-3-ylboronic acid(cas: 1692-25-7COA of Formula: C5H6BNO2)
Pyridin-3-ylboronic acid(cas: 1692-25-7) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. COA of Formula: C5H6BNO2