Synthesis and heterocyclization of dithiocarbamoylacetoacetic esters and anilides
The action o[" salt.; o f N-monosubstituted dithiocarbamic acids on ct-chloroacetoaeetic ester and the corresponding anilide led to the isolation o[" the ct-dithiocarbamoyl derivatives. These derivatives are converted, on standing or heating, to the ethyl ester and anilide q['4-methyl-3-methyl(ao,l)-2-thiooxy-l,3thiazolyl-5-carboxylic acids, which can be converted to the corresponding acid, acid chloride, and anilide.