【摘要】 3-甲硫基-5-氧代-2,5-二氢-1,2,4-嗪（lc）与取代的苯磺酰氯反应,在无水吡啶中生成N-[6-（3-甲硫基-5-负氧基）-1,2,4-三嗪基]吡啶内（钅翁）盐（4）;在NaOH-H₂O-CH₃COCH₃中生成3-甲硫基-4-（取代苯磺酰基）-5-氧代-6-羟基-1,4,5,6-四氢-1,2,4-三嗪（6）;在NaOH-CH₃OH中则生成1-（对甲苯磺酰基）-3-甲硫基-5-氧代-6-甲氧基-1,4,5,6-四氢-1,2,4-三嗪（7）,显示了其6-C具有不寻常的亲电特性.更多还原

【Abstract】 3-Methylthio-5-oxo-2,5-dihydro-l,2,4-triazine reacted with substitued benzene sulfochloride, to give 3-methylthio-4-substituted benzene sulfonyl-5-oxo-6-hydroxy-1,4, 5,6-tetrahydro-l,2,4-triazine in the solution of NaOH-H2O-CH3COCH3; to give 1-tosyl-3-methylthio-5-oxo-6-methyloxy-l,4,5,6-tetrahydro-l,2,4-triazine in the solution of NaOH-CH3OH. The series of reaction show a anomalous properties of electrophilic addition in 6-carbon of the 1,2,4-triazine ring.更多还原