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:——
Eckhard,I.F. et al., Australian Journal of Chemistry, 1973, vol. 26, p. 2705 - 2710
作者:Eckhard,I.F. et al.
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.
Reaction of N-hydroxyacetoacetanilide with carbonyl reagents.
作者:KATSUMI TABEI、ETSUKO KAWASHIMA、TETSUZO KATO
DOI:10.1248/cpb.29.244
日期:——
The reaction of N-hydroxyacetoacetanilide derivatives (1a-g) with hydroxylamine in aqueous ethanol gave 3-methyl-4-arylhydrazono-5-isoxazolones (3a-g). When ethanol or chloroform was used as the reaction medium, the reaction of N-hydroxyacetoacetanilide (1a) with carbonyl reagents gave N-phenylhydroxylamine derivatives and five-membered heterocycles such as 3-methyl-5-isoxazolone or 3-methyl-5-pyrazolone derivatives. The mechanism of the formation of these products is discussed.