Cl[C:2]1[CH:7]=[CH:6][N+:5]([O-:8])=[C:4]([CH3:9])[C:3]=1[CH3:10].[SH:11][CH2:12][CH2:13][C:14]1[S:18][CH:17]=[N:16][C:15]=1[CH3:19].[H-].[Na+]>>[CH3:9][C:4]1[C:3]([CH3:10])=[C:2]([S:11][CH2:12][CH2:13][C:14]2[S:18][CH:17]=[N:16][C:15]=2[CH3:19])[CH:7]=[CH:6][N+:5]=1[O-:8]Following the procedure described in Example Aa), the reaction of 4-chloro-2,3-dimethylpyridine N-oxide with 5-(2-mercaptoethyl)-4-methylthiazole in the presence of sodium hydride gives 2,3-dimethyl-4-[2-(4-methyl-5-thiazolyl)-ethylthio]pyridine N-oxide; m.p.: 135°-137° C (yield: 79%).
Wird geladen…