Abstract NTrifluoromethyl and cyclopropyl substituted 2-isoxazolines were synthesized via a DBU-promoted domino reaction of β-trifluoromethyl-/β-cyclopropyl-substituted enones with hydroxylamine. The domino reaction consists of a Michael addition and the followed cyclization. A wide range of 3-substituted 5-cyclopropyl-5- trifluoromethyl-2-isoxazolines were obtained in good to excellent yields under mild reaction conditions. The method could also apply to other trifluoromethyl-substituted enones.

中文翻译：

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DBU促进的多米诺反应合成三氟甲基/环丙基取代的2-异恶唑啉

摘要通过β-三氟甲基-/β-环丙基取代的烯酮与羟胺的DBU促进的多米诺反应，合成了N-三氟甲基和环丙基取代的2-异恶唑啉。多米诺反应由迈克尔加成和随后的环化组成。在温和的反应条件下，以良好或优异的产率获得了广泛的3-取代的5-环丙基-5-三氟甲基-2-异恶唑啉。该方法也可以应用于其他三氟甲基取代的烯酮。