A process for producing organic sulfur acid or a salt thereof of the present invention allows an organic substrate to react with a sulfur oxide in the presence of a metallic compound catalyst and in the absence of N-hydroxy and N-oxo cyclic imide compounds and thereby yields a corresponding organic sulfur acid or a salt thereof. Such organic substrates include, for example, (a) homocyclic or heterocyclic compounds having a methylene group, (b) compounds having a methine carbon atom, (c) compounds having a methyl group or methylene group at the adjacent position to an unsaturated bond, (d) non-aromatic heterocyclic compounds having a carbon-hydrogen bond at the adjacent position to a hetero atom, and (e) straight-chain alkanes. The sulfur oxide includes, for example, sulfur dioxide. This production process can efficiently produce an organic sulfur acid or a salt thereof under mild conditions.
本发明的有机
硫酸或其盐的生产方法允许有机底物在
金属化合物催化剂存在下与
硫氧化物反应,而无需N-羟基和N-氧代环亚酰胺化合物,并因此产生相应的有机
硫酸或其盐。这样的有机底物包括,例如,(a) 具有亚甲基基团的同环或异环化合物,(b) 具有亚甲基碳原子的化合物,(c) 在不饱和键相邻位置具有甲基基团或亚甲基基团的化合物,(d) 具有相邻位置至杂原子处的碳氢键的非芳香
杂环化合物,以及(e) 直链
烷烃。
硫氧化物包括,例如,
二氧化硫。这种生产方法可以在温和条件下高效地生产有机
硫酸或其盐。