6-chloromethyl-2-methyl-2,3-dihydro-[1,4]dithiino[2,3-
c]pyrrole-5,7-dione 、
thiophosphoric acid O,O'-di-sec-butyl ester; potassium salt 以
丁酮 为溶剂,
生成 thiophosphoric acid O,O'-di-sec-butyl ester S-(2-methyl-5,7-dioxo-2,3,5,7-tetrahydro-[1,4]dithiino[2,3-c]pyrrol-6-ylmethyl) ester