Procedure for the manufacture of dihydro-benzotiadiazina-1,1 dioxides and benzotiadiazina-1,1-dioxides, replaced in the second and third positions (Machine-translation by Google Translate, not legally binding)

摘要

PROCEDURE FOR THE MANUFACTURE OF DIHYDROBENZOTIADIAZINA-1,1-DIOXIDES AND BENZOTIADIAZINA-1,1-DIOXIDES, SUBSTITUTED IN THE SECOND AND THIRD POSITIONS, characterized in that it is necessary to start from the general formula ** (See formula) ** and by the fact that the corresponding N-substituted o-sulfonamidoaniline is transformed with the corresponding aldehyde, also in the presence of a condensation medium. (Machine-translation by Google Translate, not legally binding)