An asymmetric Salamo-based Zn complex supported on Fe3O4 MNPs: a novel heterogeneous nanocatalyst for the silyl protection and deprotection of alcohols under mild conditions was written by Yao, Hongyan;Wang, Yongsheng;Razi, Maryam Kargar. And the article was included in RSC Advances in 2021.Formula: C7H6Cl2O This article mentions the following:
A magnetic asym. Salamo-based Zn complex (H2L = salen type di-Schiff bases)-supported on the surface of modified Fe3O4 (Fe3O4@H2L-Zn) as a new catalyst was designed and characterized via numerous anal. techniques such as FT-IR spectroscopy, XRD, EDS, ICP-AES, SEM, TEM, TGA and VSM. An efficient and sustainable synthetic protocol were presented for the synthesis of silyl ether substructures via the silyl protection of alcs. under mild conditions. The synthetic protocol involved a two-component solvent-free reaction between various hydroxyl-bearing substrates and hexamethyldisilazane (HMDS) as an inexpensive silylating agent using Fe3O4@H2L-Zn MNPs as a magnetically separable, recyclable and reusable heterogeneous catalyst. Fe3O4@H2L-Zn MNPs were also applied for the removal of silyl protecting groups from hydroxyl functions using water in DCM under green conditions. The catalyst demonstrated good to excellent catalytic yield efficiency for both the reactions compared to the com. metal-based catalysts under green conditions for a wide range of substrates. In the experiment, the researchers used many compounds, for example, (2,4-Dichlorophenyl)methanol (cas: 1777-82-8Formula: C7H6Cl2O).
(2,4-Dichlorophenyl)methanol (cas: 1777-82-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Formula: C7H6Cl2O
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts