Methylation of 3-methyl- and 3-phenyl-4-arylhydrazonoisoxazol-5-ones with methyl iodide and dimethyl sulfate
作者:Shyam K. Singh、Lindsay A. Summers
DOI:10.1002/jhet.5570220250
日期:1985.3
Methylation of 3-methyl-4-arylhydrazonoisoxazol-5-ones with methyl iodide affords both 2,3-dimethyl-4-arylazoisoxazol-5-ones and 3-methyl-4-(N-methylarylhydrazono)isoxazol-5-ones but with dimethyl sulfate only the former products are formed. 3-Phenyl-4-arylhydrazonoisoxazol-5-ones behave in a similar way on methylation with methyl iodide and dimethyl sulfate.
3-甲基-4-芳基肼基异恶唑-5-酮与碘代甲烷的甲基化作用既可得到2,3-二甲基-4-芳基偶氮异恶唑-5-酮和3-甲基-4-(N-甲基芳基肼基)异恶唑-5-酮,但具有硫酸二甲酯只有前一种产物形成。3-苯基-4-芳基肼基异恶唑-5-酮在甲基碘和硫酸二甲酯的甲基化反应中具有相似的作用。