作者:Hisashi Takei、Hideo Shimizu、Moriaki Higo、Teruaki Mukaiyama
DOI:10.1246/bcsj.41.1925
日期:1968.8
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。