A convenient one-pot preparative method for 4,5-diarylisoxazoles involving amine exchange reactions
4,5-Diarylisoxazoles 1 are efficiently prepared by submitting enaminones 2, readily obtained from deoxybenzoins 3, to oximation conditions. This conversion implies an uncommon amine group exchange reaction. Preparation of 4-isoxazolines 5 and ring-opening transformations to β-keto nitriles 4 and 1,3-amino alcohol derivatives 7 are also described.
Dominguez, Esther,Ibeas, Estibaliz,De Marigorta, Eduardo Martinez,Palacios, Jon Kepa,SanMartin, Raul
p. 5435 - 5439
(2007/10/03)
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