Quantitative evaluation of peroxides, hydroperoxides and alcohols of m-diisopropylbenzene by nuclear magnetic resonance spectroscopy

Abstract

The nuclear magnetic resonance spectroscopic analysis of the reaction mixtures obtained in the catalytic oxidation of m-diisopropylbenzene is reported. The solvent effects on the methyl resonances due to —C(CH₃)OO—, —C(CH₃)₂OOH, —C(CH₃)₂OH and —CH(CH₃)₂ groups in the oxidation products, have been studied, using as reference compounds the main reaction products, which had been synthesised for this purpose. The best results for the resolutions of the different resonances and their assignments were obtained by using deuteroacetone-d₆ as solvent. The quantitative evaluation of the various components present in the crude reaction mixtures is shown to be possible.