An examination of the literature revealed that direct alkylation of 5-monosubstituted- tetrazoles may lead to either 1, 5-or 2, 5-disubstituted-tetra-zoles, or both. Thus Lossen'treated 5-phenyltetrazole with ethyl iodide and potassium ethoxide and pointed out that he was not able to determine the structure of the resulting phenylethyltetrazole. Pinner2 treated 5-(2-naphthyl)-tetrazole with sodium ethoxide and methyl iodide and gave the ...
