Reactivity of unsaturated centres in heterocycles and chalkones toward diazoalkanes
作者:A. Mustafa、W. Asker、A.H. Harhash、A.M. Fleifel
DOI:10.1016/s0040-4020(01)93877-3
日期:1965.1
Singh, Shyam K.; Summers, Lindsay A., Journal of Heterocyclic Chemistry, 1987, vol. 24, p. 933 - 939
作者:Singh, Shyam K.、Summers, Lindsay A.
DOI:——
日期:——
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.