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Preparation of 2,7-Diaminofluorenone Derivatives by Palladium Catalyzed Amination [1]

Darstellung von 2,7-Diaminofluorenonderivativen durch palladiumkatalysierte Aminierung [1]

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Summary.

 A convenient synthesis of tert-2,7-diaminofluorenonens 3a3e via palladium catalyzed reaction of secondary amines with 2,7-dibromofluorene and subsequent oxidation is described. In the cases were non-cyclic secondary amines are applied, the aniline derivatives 4c4e are formed as side products by a dehydrohalogenation reaction.

Zusammenfassung.

 Eine einfache Synthese der tertiären 2,7-Diaminofluorenone 3a3e durch palladiumkatalysierte Umsetzung von sekundären Aminen mit 2,7-Dibromfluoren und anschließende Oxidation wird beschrieben. Bei der Umsetzung mit offenkettigen sekundären Aminen werden durch eine Dehydrohalogenierungsreaktion auch die Anilinderivate 4c4e als Nebenprodukte gebildet.

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Received February 11, 1998. Accepted (revised) April 21, 1998

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Ipaktschi, J., Sharifi, A. Preparation of 2,7-Diaminofluorenone Derivatives by Palladium Catalyzed Amination [1]. Monatshefte fuer Chemie 129, 915–920 (1998). https://doi.org/10.1007/PL00013499

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  • DOI: https://doi.org/10.1007/PL00013499

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