作者:Ruicheng Ran、Charles U. Pittman
DOI:10.1002/jhet.5570300635
日期:1993.12
An improved synthesis of cyclohexanothioxanthenones in high yield (70-90%) by treatment of thiosalicylic acid (4) or 2,2′-dithiosalicylic acid with 1,2,3,4-tetrahydronaphthalene (5) in the presence of concentrated sulfuric acid or a mixture of 95% sulfuric acid with 27-30% fuming sulfuric acid (in 5:1 to 2:1 v/v ratio) was described. The crude product consisted of three isomers which were isolated
在浓硫酸存在下,通过用1,2,3,4-四氢萘(5)处理硫代水杨酸(4)或2,2'-二硫代水杨酸(5),可提高产率(70-90%)的环己基噻吨酮的改进合成方法或描述了95%的硫酸与27-30%的发烟硫酸(以5:1至2:1 v / v的比例)的混合物。粗产物由分离和鉴定的三种异构体组成。这些异构体是1,2-,2,3-和3,4-环己基噻吨酮(1、2和3)。