I think partial oxidation with potassium permanganate will give an alcohol with methy end of the toluene give -CH2OH, further oxidation will give benzaldehyde and complete oxidation benzoic acid
--- Spitzer, U. A. The Mechanism of Permanganate Oxidation of Alkanes, Arenes and Related Compounds. Ph.D. Thesis, The University of British Columbia, November 1972. DOI: 10.14288/1.0060242.