作者:A. J. Boulton、Mikl�s Kiss、J. D. Kalenga Saka
DOI:10.1039/p19880001509
日期:——
4-Methoxy-1,2,3-benzotriazine, like the 4-methyl and 4-phenyl compounds, forms the 2-oxide on N-oxidation; this is hydrolysed to the acidic 3,4-dihydro-4-oxo-1,2,3-benzotriazine 2-oxide, which is N-methylated by diazomethane at the 3-position. The 4-methoxy 2-oxide was converted into 4-amino- and 4-hydrazine-derivatives. 5-Amino-3-methylisoxazole-2-carbonitrile forms 3,4-dihydro-5-methyl-4-oxoisoxazolo[5
像4-甲基和4-苯基化合物一样,4-甲氧基-1,2,3-苯并三嗪在N-氧化时形成2-氧化物。将其水解成酸性的3,4-二氢-4-氧代-1,2,3-苯并三嗪2-氧化物,其在3-位被重氮甲烷N-甲基化。将4-甲氧基2-氧化物转化为4-氨基和4-肼衍生物。5-氨基-3-甲基异恶唑-2-腈与硝酸和硫酸反应生成3,4-二氢-5-甲基-4-氧代恶唑并[5,4 - d ] -1,2,3-三嗪2-氧化物。报道了一些1,2,3-苯并三嗪及其N-氧化物的15 N nmr光谱。