Seven substituted α,α-bis(butylsulfonyl)toluenes and three 2-aryl-1,1,3,3-tetraoxo-1,3-dithiolanes have been prepared and their 1H NMR, IR, and MS spectra measured. The pKHA values of the substituted α,α-bis(butylsulfonyl)toluenes have been determined by potentiometric titration in dimethyl sulfoxide, dimethylformamide, and 80% (v/v) mixture of dimethyl sulfoxide and water. The results are interpreted by the Yukawa-Tsuno relationship (parameter r = 0.43 - 0.49) and classified in relation to analogous N- and O-acids by the methods with latent variables (the method of conjugated deviations).
已准备了七种替代的α,α-双(丁基磺酰基)甲苯和三种2-芳基-1,1,3,3-四氧杂环戊二酮的样品,并测量了它们的1H NMR、IR和MS光谱。通过在二甲基亚砜、二甲基甲酰胺和二甲基亚砜与水80%(体积比)混合物中进行电位滴定,确定了替代的α,α-双(丁基磺酰基)甲苯的pKHA值。利用Yukawa-Tsuno关系(参数r=0.43-0.49)解释了结果,并通过潜在变量方法(共轭偏差法)将其与类似的N-酸和O-酸进行了分类。