o-トルエンスルホクロライドの電解還元

抄録

We obtained o-thiocresol the final product, by the electrolytic reduction of o-toluenesulfonchloride in alcoholic sulphuric acid solution in which lead pole is used as cathode, and at the same time, o, o′-ditolyldisulfide, o, o′-ditolydisulfoxide, o-toluene-sulfonic acid were obtained as the intermediate products. These products conincide with the ones which we obtained in the electorlytic reduction of p-toluenesulfonyl choloride. But there was a difference of the current efficiency, in the reduction between p-compound and o-compound. As to o-compound, sulfinic acid and disulfoxide were reduced in good current efficiency but that of disulfide was not so good. Differing from the case of p-compound, the production of -disulfoxide followed that of sulfinic acid in case of o-compound. These results showed that the reductive reaction might be proceeded in a different mechanism in the cases of o-compound and p-compound respectively.