Synthesis of the silver(i) complex of CH2[CH(pz4Et)2]2 containing the unprecedented [Ag(NO3)4]3− anion: A general method for the preparation of 4-(alkyl)pyrazoles†
Abstract
A general two-step method for the syntheses of 4-(alkyl)pyrazoles has been developed. The first step involves the reaction between organyl diethylacetals and the Vilsmeier reagent to give a mixture of ethoxy- and dimethylamino- acroleins. This mixture reacts directly with