Fig. 8

Possible reaction mechanism for the cleavage of monosubstituted diols. Pathway a the oxidative cleavage of 1-phenylethane-1,2-diol 1a underwent the intermediate benzaldehyde 4a. Pathway b the oxidative cleavage of 1-phenylethane-1,2-diol 1a underwent the intermediates ketoester 5f and benzoylformic acid 5e