SYNTHESIS AND STRUCTURE OF 1,1-DIOXIDES OF 3-ALLLYL(STYRYL)-4H-1,2,4-BENZOTHIADIAZINE

Article abstract of DOI:10.1007/BF00506961

The reaction of o-aminobenzenesulfonamides with acids of crotonic and cinnamic acids in dioxane yielded the corresponding anilides, which were cyclized to derivatives of 1,2,4-benzothiadiazine 1,1-dioxide.The structure of the end products is discussed in connection with the possibility of tautomeric equilibrium of the 2H- and 4H-forms on the basis of the spectral data.