Nouvelle méthode de synthèse des 4,5-dihydroisoxazoles en milieu biphasique solide-liquide et par activation ultrasonique
作者:Bouazza Syassi、Bouchra El Bakkali、Ghita Amine Benabdellah、Amina Hassikou、Mohamed Nacer Dinia、Monique Rivière、Khalid Bougrin、Mohamed Soufiaoui
DOI:10.1016/s0040-4039(99)01274-5
日期:1999.10
A novel methodology is developed for a ‘one-pot’ synthesis of 4,5-dihydroisoxazoles. 1-Sodio 3,5-dichloro-s-triazine-2,4,6-trione, alumina, dichloromethane, arylaldoximes, dipolarophiles and ultrasound irradiation are the leading ingredients in the success of this selective reaction. All heterocycles are obtained with good yields and high purity by comparison with classical stirring in the same conditions
开发了一种新颖的方法,用于“一锅”合成4,5-二氢异恶唑。1-Sodio 3,5-dichloro-s-triazine-2,4,6-trione,氧化铝,二氯甲烷,芳基醛肟,双极性亲和剂和超声辐射是成功进行此选择性反应的主要成分。与在相同条件下进行传统搅拌相比,所有杂环均以高收率和高纯度获得。