A New Metal Complex Promoted System for Highly Selective Synthesis of 4H-Chromen-4-ones (Chromones)

Akira Nishinaga; Hiroyuki Ando; Kazushige Maruyama; Takahiro Mashino

doi:10.1055/s-1992-26241

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Synthesis 1992; 1992(9): 839-841
DOI: 10.1055/s-1992-26241

short paper

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A New Metal Complex Promoted System for Highly Selective Synthesis of 4H-Chromen-4-ones (Chromones)

Akira Nishinaga^* , Hiroyuki Ando, Kazushige Maruyama, Takahiro Mashino

^*Department of Applied Chemistry, Osaka Institute of Technology, Ohmiya 5, Asahi-ku, Osaka 535, Japan

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Publication Date:
17 September 2002 (online)

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Co^III(salpr)(OH), a six coordinate cobalt Schiff base complex, promotes the highly selective conversion of 1-(o-hydroxyaryl)-1,3-diketones to 4H-chromen-4-ones under neutral conditions.