مشخصات پژوهش

Electrochemical synthesis of new arylthiobenzazoles were carried out by electrochemical oxidation of 1-(4-(4-hydroxyphenyl)piperazin-1-yl)ethanone in the presence of 2-mercaptobenzothiazole and 2-mercaptobenzoxazole. Our voltammetric data indicate that electrochemically generated p-quinone-imine participates in Michael addition reaction with 2-SH-benzazoles leading to the disubstituted 1-(4-(4-hydroxyphenyl)piperazin-1-yl)ethanone. Also, a plausible mechanism for the oxidation of 1-(4-(3,5-bis(benzo[d]thiazol-2-ylthio)-4-hydroxyphenyl) in the presence of p-toluenesulfinic acid is presented. 1-(4-(3,5-Bis(benzo[d]thiazol-2-ylthio)-4-hydroxyphenyl) was converted in to 2-(benzo[d]thiazol-2-ylthio)-6-tosylcyclohexa-2,5-diene-1,4-dione through a Michael-type addition of p-toluenesulfinic acid to anodically generated p-quinone-imine, replacing thereby 2-mercaptobenzothiazole and followed by hydrolysis.