It was found that benzhydryl dimethylamidosulfite, obtained from N,N,N′,N′-tetramethylsulfurous diamide-phenyl isocyanate adduct and benzhydrol, decomposed to give benzhydryldimethylamine and sulfur dioxide. Similarly, triphenylmethyl and 1,3-diphenylallyl dimethylamidosulfite gave corresponding tertiary amines when these esters were refluxed in benzene. On the other hand, benzoin dimethylamidosulfite gave benzil, the oxidized product of benzoin. When β-anilinoethyl and β-N-methylaminoethyl dimethylamidosulfite were heated at 120–130°C for 10 min, cyclic esters of amidosulfurous acid, 3-phenyl- and 3-methyl-1,2,3-oxathiazolidine-2-oxide, were obtained along with evolution of dimethylamine. Further, the thermal decomposition of the cyclic compounds was studied.
研究发现,由 N,N,N′,N′-四甲基亚
硫酰二胺-苯基
异氰酸酯加合物和
苯甲醇制得的二甲基
亚硫酸苯甲酰酯分解生成二甲基苯
甲胺和
二氧化硫。同样,三苯甲基和 1,3-二苯基烯丙基二甲基亚
氨基磺酸酯在苯中回流时会生成相应的叔胺。另一方面,
安息香二甲基亚
氨基磺酸盐会生成
安息香的氧化产物苯偶姻。将 β-anilinoethyl 和 β-N-methylaminoethyl 二甲基亚
氨基磺酸盐在 120-130°C 的温度下加热 10 分钟,可得到脒基
亚硫酸环酯、3-苯基和 3-甲基-1,2,3-噁
噻唑烷-2-氧化物,并同时产生
二甲胺。此外,还对环状化合物的热分解进行了研究。