MOO₂Cl₂·2DMSO: Recyclable Catalyst for Selective Oxidation of Alcohols under Solvent Free Conditions

Title:MOO₂Cl₂·2DMSO: Recyclable Catalyst for Selective Oxidation of Alcohols under Solvent Free Conditions

Volume: 2 Issue: 3

Author(s): Vaibhav R. Acham, Mohan K. Dongare and Shubhangi B. Umbarkar

Affiliation:

Keywords: Dimethyl sulfoxide, Homogeneous catalysis, MoO2Cl2·2DMSO, Oxidation, Primary alcohols.

Abstract: The catalytic activity of the dichlorodioxomolybdenum (MoO₂Cl₂·2DMSO) complex was investigated for oxidation of aromatic alcohols to corresponding aldehydes using dimethyl sulfoxide (DMSO) as an oxidant under solvent free conditions. The catalyst showed very high conversion and selectivity for aldehyde with high turnover number up to 1000 and high turnover frequency. For substituted benzyl alcohols there was increase in the conversion with electron donating substituents whereas there was decrease in conversion with electron withdrawing substituents. Interestingly though, the catalyst is homogeneous in nature, it was efficiently recycled even up to five recycles without appreciable loss in the activity. Based on the products obtained during reaction the mechanism for oxidation has been proposed.

Cite this article as:

R. Acham Vaibhav, K. Dongare Mohan and B. Umbarkar Shubhangi, MOO₂Cl₂·2DMSO: Recyclable Catalyst for Selective Oxidation of Alcohols under Solvent Free Conditions, Current Catalysis 2013; 2 (3) . https://dx.doi.org/10.2174/2211544711302030010