Oxidation von 1, 3??Diphenyl??1, 3??propandionen mit Thallium??(III)??nitrat in Methanol

…, E Baitz??Gács, F Boross, M Nógrádi…

Index: Antus, Sandor; Baitz-Gacs, Eszter; Boross, Ferenc; Nogradi, Mihaly; Solyom, Aniko Liebigs Annalen der Chemie, 1980 , # 8 p. 1271 - 1282

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Abstract

Abstract Bei der Oxidation mit Thallium (III)-nitrat in Methanol werden die 1, 3-Diphenyl-1, 3- propandione 1 zu den 3-Oxo-2, 3-diphenylpropansäureestern 2 und deren Folgeprodukte umgelagert. Die 1-(2-Hydroxyphenyl)-3-phenyl-1, 3-propandione 1h–k werden dagegen oxidativ zu den 2-Aroyl-3 (2H)-benzofuranonen 5 cyclisiert.—Der durch Alkalilauge und Säure katalysierte Abbau von 5 wird diskutiert.

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