Reaction of sodium salts of O-methyl-N-substituted iminothiocarbonates with bromoacetyl bromide represents a new general method for preparation of 3-substituted 1,3-thiazolidine-2,4-diones in good yields and high purity. The structure of the synthesized products has been confirmed by 1H NMR, 13C NMR, IR and mass spectroscopy as well as by independent synthesis.
通过溴乙酰溴与甲基-O-取代亚硫代碳酸亚胺钠盐的反应,可以得到3-取代-1,3-噻唑啉-2,4-二酮,产率高且纯度高,这代表了一种新的通用制备方法。合成产物的结构已通过1H NMR、13C NMR、IR和质谱以及独立合成进行了确认。