1-phenyl-1-(1-phenyl-3-methyl-2-pyrazolin-5-one)-1-(1'-phenyl-3'-methyl-2'-pyrazolin-5'-thione)methane 在
碘 、 potassium iodide 作用下,
以
sodium hydroxide 为溶剂,
反应 2.0h,
以40%的产率得到1,10-dimethyl-3,8,11-triphenyl-7-sulfanylidene-2,3,8,9-tetrazadispiro[4.0.46.15]undeca-1,9-dien-4-one