作者:N. B. Chapman、K. Clarke、K. S. Sharma
DOI:10.1039/j39700002334
日期:——
sulphate was oxidised to N-methylthieno[3,2-f]quinolin-7-one, which, on treatment with phosphorus pentachloride, gave 7-chlorothieno[3,2-f]quinoline. However, the methosulphate reacted with aqueous potassium cyanide to give 6,9-dihydro-N-methylthieno[3,2-f]quinoline-9-carbonitrile which when oxidised with iodine in pyridine yielded 9-cyano-N-methylthieno[3,2-f]quinolinium iodide. Demethylation gave thieno
噻吩并[3,2- f ]喹啉的单硝化,单溴化和Friedel-Crafts酰化反应在2位发生。在浓硫酸中进行二溴化得到1,2-二溴衍生物。噻吩并[3,2-的汉斯狄克反应˚F ]喹啉-2-羧酸,得到1,2,5- tribromothieno [3,2-的混合物˚F ]喹啉和5-溴噻吩并[3,2- ˚F ]喹啉除未改变的起始原料外的2-羧酸。噻吩并[3,2 - f ]喹啉-2-羧酸钠的溴化得到5-溴酸。N-甲基硫代[3,2- f ]喹啉硫酸氢盐被氧化为N-甲基硫代[3,2- f]喹啉-7-一,用五氯化磷处理后,得到7-氯噻吩并[3,2- f ]喹啉。但是,甲基硫酸盐与氰化钾水溶液反应生成6,9-二氢-N-甲基噻吩并[3,2 - f ]喹啉-9-腈,当在吡啶中用碘氧化时,会生成9-氰基-N-甲基噻吩并[3, 2- f ]碘化喹啉鎓。脱甲基得到噻吩并[3,2 - f ]喹啉-9-腈。噻吩并[3,2-