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À propos de : Imidoylketene−Oxoketenimine Interconversion. Rearrangementof a Carbomethoxyketenimine to a Methoxyimidoylketene and2-Methoxy-4-quinolone        

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  • Imidoylketene−Oxoketenimine Interconversion. Rearrangementof a Carbomethoxyketenimine to a Methoxyimidoylketene and2-Methoxy-4-quinolone
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  • FVP of triazole 13 produces the isolableketenimine 11 together with indole 15.11 undergoesreversible interconversion with imidoylketene 10 above 380°C. The latter cyclizes to quinolone12. Meldrum's acid derivative 16 producesthe same ketene 10 above 200 °C, and thelatterisomerizes to ketenimine 11 at 200 °C by a 1,3-shift of aMeO group. A competing elimination ofMeOH from 16 produces (phenylimino)propadienone20.
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