Isoxazole Platform for Polyketide Assembly: Cycloaddition of Stable Benzonitrile Oxides to Stable ortho-Quinone Monoacetals and Dehydrogenation

A two-step preparation of highly functionalized polycyclic isoxazoles is described via regioselective 1,3-dipolar cycloaddition of ortho-disubstituted benzonitrile oxides to ortho-quinone monoacetals and dehydrogenation by NiO2.

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Veröffentlicht in:Chemistry letters 2014-10, Vol.43 (10), p.1607-1609
Hauptverfasser: Takikawa, Hiroshi, Hashimoto, Yoshimitsu, Suzuki, Keisuke
Format: Artikel
Sprache:eng
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Zusammenfassung:A two-step preparation of highly functionalized polycyclic isoxazoles is described via regioselective 1,3-dipolar cycloaddition of ortho-disubstituted benzonitrile oxides to ortho-quinone monoacetals and dehydrogenation by NiO2.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.140574