Experimental 2,5-Dialkoxyacetophenones.-The general method of Abbott and Smitha for the preparation of 2,Mimethoxy- acetophenone by the Friedel-Crafts acylation of 1,4-di- methoxybenzene was used. In the case of the di-n-pro- poxp- and di-n-butoxy-compounds, better yields were ob- tained if the aluminum chloride complex was hydrolyzed three hours after combination of the reactants was com- pleted rather than allowing the mixture to stand overnight. * ...