Rhodium-katalysierte Addition von Diphenylacetylen an Azobenzol: ein neuer Weg zu Indolderivaten

作者: P. Rei�er , Y. Wakatsuki , H. Kisch

DOI: 10.1007/BF00811752

关键词: ChemistryDiphenylacetyleneAzobenzeneMedicinal chemistry

摘要: RhCl(PPh3)3 katalysiert die Bildung von N-Anilino-2,3-diphenylindol (1) und kleiner Mengen 2,3-Diphenylindol (2) aus Azobenzol Diphenylacetylen. Schwache Sauren Kieselgel beschleunigen Reaktion furhren zu einer nahezu quantitativen von1. Andere Rhodium(I)-Komplexe sind weniger aktiv Rh(III)-Verbindungen wirken inhibierend. Die Strukturen zweier Schlusselintermediate des postulierten Katalysezyklus werden durchab initio MO-Rechnungen bestatigt..

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