| abstract |
(57) Abstract: [PROBLEMS] To provide an improved method for producing a 1,2-dithiol-3-thione derivative, which has a problem in terms of yield and the like. SOLUTION: A 1,2-dithiol-3-thione derivative represented by the general formula (1) is prepared by adding sulfur to the reaction between the compound represented by the general formula (2) and phosphorus pentasulfide. Law. [Effect] According to the present invention, a 1,2-dithiol-3-thione derivative useful as an intermediate for pharmaceuticals can be efficiently produced. |