Reaction of β-dimethylaminovinyl ketones with hydroxylamine: A simple and useful method for synthesis of 3- and 5-substituted isoxazoles
作者:Fernanda A. Rosa、Pablo Machado、Helio G. Bonacorso、Nilo Zanatta、Marcos A. P. Martins
DOI:10.1002/jhet.5570450337
日期:2008.5
The regioselective synthesis of 3- and 5-substituted-isoxazoles from the reaction of β-dimethyl-aminovinyl ketones [R-C(O)CHCH-NMe2, where R Ph, MeO-4-C6H4, F-4-C6H4, Cl-4-C6H4, Br-4-C6H4, O2N-4-C6H4, fur-2-yl, thien-2-yl, pyrrol-2-yl, Et and CCl3] and hydroxylamine hydrochloride varying only the reaction conditions (with and without the addition of pyridine) is reported.
由β-二甲基氨基乙烯基酮[RC(O)CH CH-NMe 2,其中R Ph,MeO-4-C 6 H 4,F-4- C 6 H 4,Cl-4-C 6 H 4,Br-4-C 6 H 4,O 2 N-4-C 6 H 4,呋喃-2-基,噻吩-2-基,吡咯-2-报道了仅改变反应条件(添加和不添加吡啶)的烷基,Et和CCl 3 ]和盐酸羟胺。