Abstract The phenomenon mentioned in an earlier paper, viz. that a methyl group in ortho- xylene derivatives may behave as a larger substituent than the methyl group in comparable para-xylene or toluene derivatives, has been investigated more in detail with the aid of deacylation rates, ultra-violet absorption spectra, molecular refractions, and basic strengths. The phenomenon per se has been confirmed by this work. Naturally, however, it does not ...
