Catalytic activity of SBA-15 supported CuO for selective oxidation of veratryl alcohol to veratraldehyde was written by Dhinagaran, G.;Harichandran, G.;Suvaitha, S. Prashanna;Venkatachalam, K.. And the article was included in Molecular Catalysis in 2022.SDS of cas: 57-55-6 This article mentions the following:
Selective oxidation of veratryl alc. (VAlc) to veratraldehyde (VAld) under mild conditions using heterogeneous catalysts is advantageous for industrial applications. In the present study, newly developed SBA-15 supported copper oxide catalyst designated as CuO(5,10,15 weight%)/SBA-15 was examined for the selective oxidation of VAlc to VAld using tert-Bu hydroperoxide (TBHP) as an oxidant between 40 and 100°C. CuO(10 weight%)/SBA-15 showed high conversion (82.5%) compared to others by forming VAld with 100% selectivity. We examined its selective oxidising power using a substrate possessing both the primary and secondary alc. functions, namely propylene glycol (PG). In this substrate, only the secondary alc. group was oxidized to hydroxyacetone (HA). It suggests preferential adsorption of the primary alc. group of PG on the catalyst surface close to the adsorbed TBHP, thus leaving only the secondary alc. group positionally favorable for oxidation In addition, the catalyst effectively oxidized 2-butanol to 2-butanone. So, the catalyst is verified active against both primary and secondary alcs., but when both of them are present on the adjacent carbons of the same compound, only the secondary alc. function is oxidized. So, the present catalyst could have tremendous applications for selective oxidation in organic synthesis. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6SDS of cas: 57-55-6).
1,2-Propanediol (cas: 57-55-6) 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. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.SDS of cas: 57-55-6
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts