2-ethylmercapto-4-(1-ethylmercapto-ethylidene)-4H-thiazol-5-one 、 3-allyl-5-morpholinomethylene-2-thioxo-thiazolidin-4-one 在
对甲苯磺酸甲酯 作用下,
生成 1-ethylmercapto-1-(2-ethylmercapto-5-oxo-thiazol-4-yliden)-2-(3-allyl-5-morpholinomethylen-4-oxo-thiazolidin-2-yliden)-ethane