[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>[CH3:20][O:19][C:16]1[CH:15]=[CH:14][C:13]([C:11]2[N:12]=[C:7]([S:6][CH3:3])[N:8]=[N:9][C:10]=2[C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)=[CH:18][CH:17]=1Eight grams (0.20 mole) of sodium hydroxide were dissolved in 600 ml. of ethanol. The resulting solution was cooled to ambient 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 5,6-bis(4-methoxyphenyl)-3-methylthio-1,2,4-triazine, m.p. about 152°-155° C., was 67.3 g.
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