Reactions of some N-(2,5-dimethoxyaryl)thiobenzamides: En route to an analogue of kuanoniamine A
The reactions of some N-(2,5-dimethoxyaryl) thiobenzamides were studied. It was found that nitration of 2-aryl-4,7-dimethoxybenzothiazoles produced a mixture of 5- and 6-nitrobenzothiazoles which were distinguished by synthesis of the 2-aryl-4,7-dimethoxy-6-nitrobenzothiaoles by oxidative cyclization of the corresponding nitrothiobenzanilides. The results showed that the cyclization of arylthioanilides was influenced by the nature of the ring substituents.
Jackson, Yvette A.,Lyon, Michael A.,Townsend, Norman,Bellabe, Kettyna,Soltanik, Fernando