Über die Entstehung von Dehydracetsäure und ihren Analogen bei der Oxydation derα, γ, δ, ζ-Tetraketone mit Bleitetraacetat

Summary

Oxidation ofα, γ, δ, ξ-Tetraketones (I) with lead-tetraacetate yields dehydracetic acid and analogous compounds (IV). The reaction can be understood if one assumes that acylketenes (III) are formed as intermediates through the glycol-fission of the dienolic form II of the tetraketones.