Biosilica as an efficient heterogeneous catalyst for ipso-hydroxylation of arylboronic acids was written by Mahanta, Abhijit;Adhikari, Pooja;Bora, Utpal;Thakur, Ashim Jyoti. And the article was included in Tetrahedron Letters in 2015.HPLC of Formula: 51834-97-0 This article mentions the following:
A mild and efficient protocol for the conversion of arylboronic acids to phenol via ipso-hydroxylation was developed using aqueous hydrogen peroxide as oxidant and biosilica as heterogeneous catalyst. The recyclability of the catalyst is also evaluated and could be reused up to six consecutive cycles without a significant loss in catalytic activity. In the experiment, the researchers used many compounds, for example, 5-Hydroxy-2-methoxylpyridine (cas: 51834-97-0HPLC of Formula: 51834-97-0).
5-Hydroxy-2-methoxylpyridine (cas: 51834-97-0) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.HPLC of Formula: 51834-97-0