Reactions of 2,2-dialkyl-1,2-dihydroquinolines. Part IV. 4,5-Dihydro-4,4-dimethyl-1H-1,2-dithiolo[3,4-c]quinoline-1-thiones
Abstract
1,2-Dihydro-2,2,4-trimethylquinoline and its 1-methyl and 6-ethoxy-derivatives gave 4,5-dihydro-4,4-dimethyl-1H-1,2-dithiolo[3,4-c]quinoline-1-thiones on heating with sulphur. The products react with methyl iodide to give methylthiodithiolium salts.