Zvilichovsky, Gury, Journal of Heterocyclic Chemistry, 1987, vol. 24, p. 465 - 470
作者:Zvilichovsky, Gury
DOI:——
日期:——
Disic acids
作者:G. Zvilichovsky
DOI:10.1016/0040-4020(75)87042-6
日期:1975.1
4-(p-Nitrophenyl)-3,5-dihydroxyisoxazole is a remarkably strong acid which possesses unique chemical reactivity towards carbonyl compounds. It has been shown that these properties are encountered in a series of related 3,5-dihydroxyisoxazole derivatives. It appears that this isoxazole system is very electron deficient, a fact that together with a neighboring group effect is responsible for the exceptional