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Synthesis 1989; 1989(4): 275-280
DOI: 10.1055/s-1989-27221
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Eine neue Synthese für 3,4-Diaryl-5-oxo-4,5-dihydroisoxazole und ihre Überführung in 5-[N-(ω-Aminoalkyl)amino)isoxazole und 5-(2-Aminoethylthio)isoxazole

Gerd Dannhardt* , Stefan Laufer, Irmengard Obergrusberger
  • *Institut für Pharmazeutische Chemie der Johann Wolfgang Goethe-Universität, Georg-Voigt-Straße 14, D-6000 Frankfurt am Main 11, Federal Republic of Germany
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Publication Date:
17 September 2002 (online)

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A New Synthesis of 3,4-Diaryl-5-oxo-4,5-dihydroisoxazoles and Their Transformation to 5-[N-(ω-Aminoalkyl)amino]isoxazoles and 5-(2-Aminoethylthio)isoxazoles A novel method to synthesize 3,4-diaryI-5-oxo-4,5-dihydroisoxazoles by addition of methyl lithio(phenyl)acetates to benzonitrile oxides is described. The isoxazolinones are transformed to 5-[N-(ω-aminoalkyl)-amino]isoxazoles and 5-(2-aminoethylthio)isoxazoles, respectively, via the corresponding 5-chloroisoxazoles.