[OH-].[Na+].[CH2:3](O)C.[SH:6][C:7]1[N:8]=[N:9][C:10]([C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)=[C:11]([C:13]2[CH:18]=[CH:17][C:16]([O:19][CH3:20])=[CH:15][CH:14]=2)[N:12]=1.CI>O>[CH3:3][S:6][C:7]1[N:8]=[N:9][C:10]([C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)=[C:11]([C:13]2[CH:14]=[CH:15][C:16]([O:19][CH3:20])=[CH:17][CH:18]=2)[N:12]=1Eight grams (0.20 mole) of sodium hydroxide were dissolved in 600 ml. of ethanol by warming. The basic solution was cooled to room temperature and 67.0 grams (0.20 mole) of 3-mercapto-5,6-bis(4-methoxyphenyl)-1,2,4-triazine were added. Methyl iodide, 67 g. (0.47 mole), was added to the reaction mixture and the mixture immediately became a slurry. Three hundred milliliters of ethanol were added to the slurry and stirring was continued for about 3 hours. One hundred milliliters of water were added to the reaction mixture and the solid product was collected by filtration. The yield of 3-methylmercapto-5,6-bis(4-methoxyphenyl)-1,2,4-triazine, mp about 152°-155°C., was 67.3 g.
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