Reaction of 2??dimethylaminomethylene??1, 3??diones with dinucleophiles. II. Synthesis of 5??(alkyl)(phenyl)??4??acylisoxazoles and 6, 7??dihydro??1, 2??benzisoxazol??4 ( …

G Menozzi, P Schenone, L Mosti

文献索引：Menozzi, Giulia; Schenone, Pietro; Mosti, Luisa Journal of Heterocyclic Chemistry, 1983 , vol. 20, p. 645 - 648

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被引用次数: 23

摘要

Abstract The reaction of open-chain and cyclohexane sym-2-dimethylaminomethylene-1, 3- diones with hydroxylamine hydrochloride in refluxing methanol gave in good to moderate yields a series of 5-(alkyl)(phenyl)-4-acylisoxazoles and 6, 7-dihydro-1, 2-benzisoxazol-4 (5H)-ones, respectively. As 3-unsubstituted isoxazoles, all these compounds easily isomerized with sodium methoxide to the corresponding 2-cyano-1, 3-diones in high ...