The decarboxylation of isatoicanhydrides with disulfides was realized in the presence of sodium dithionite, leading to S-aryl 2-aminobenzothioate derivatives in moderate to excellent yields. Furthermore, the decarboxylation of diphenyldiselenide with isatoicanhydrides was also examined. It was noted that unexpected 2-(dimethylamino)-4H-benzo[d][1,3]thiazin-4-one was obtained using tetramethylthiuram
在连二亚硫酸钠的存在下,用二硫化物实现了ISA酸酐与二硫化物的脱羧反应,从而以中等至极好的收率得到了S-芳基2-氨基苯甲硫酸酯衍生物。此外,还研究了二苯二硒化物与iSAtoic酸酐的脱羧作用。注意到使用四甲基秋兰姆二硫化物作为硫源获得了出人意料的2-(二甲氨基)-4 H-苯并[ d ] [1,3]噻嗪-4-酮。
Different thiols were efficiently acylated at room temperature with different anhydrides in the presence of potassium carbonate. Chemoselective protection of thiol in the presence of hydroxy group was achieved using di-tert-butyl dicarbonate and isatoic anhydride.