论文部分内容阅读
由于其它研究工作的需要,作者企图自芳酰异硫氰与硫氰化钾作用来制备磺酰异硫氰。这类化合物在文献中尚未见报导过。我们观察到这类化合物极易发生聚合,无法自反应混合物中分离出来,例如当作者仿照以前工作中所报导制备酰异硫氰的方法,将等克分子量的芳磺酰氯与硫氰化钾在丙酮、乙腈或1,4二氧六环中室温下反应,均得到熔点很高,难溶于一般有机溶剂(只溶于二甲基甲酰胺)中的桔红色粉末状聚合物(见表1)其反应式可能为:
Due to the need of other research work, the authors attempt to prepare sulfonyl isothiocyanate by the action of aroyl isothiocyanate and potassium thiocyanate. Such compounds have not been reported in the literature. We have observed that these compounds are extremely prone to polymerization and can not be separated from the reaction mixture. For example, when the author modeled the preparation of acyl isothiocyanates as reported in previous work, equimolar amounts of arylsulfonyl chloride and potassium thiocyanate Acetone, acetonitrile or 1,4-dioxane at room temperature to obtain a high melting point, poorly soluble in the general organic solvent (dimethylformamide only) orange powdery polymer (see Table 1 ) The reaction may be: