Generous financial support by the Fonds der Chemischen Industrie is gratefully acknowledged. We also thank Prof. A. Fürstner for constant encouragement and support, C. Laurich, Max-Planck-Institut für Bioanorganische Chemie, Mülheim an der Ruhr, for recording the electrochemical data, and the X-ray department of our institute.
Cyclopropenylylidene-Stabilized Diaryl and Dialkyl Phosphenium Cations: Applications in Homogeneous Gold Catalysis†
Article first published online: 14 MAR 2011
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 50, Issue 16, pages 3799–3802, April 11, 2011
How to Cite
Petuškova, J., Bruns, H. and Alcarazo, M. (2011), Cyclopropenylylidene-Stabilized Diaryl and Dialkyl Phosphenium Cations: Applications in Homogeneous Gold Catalysis. Angew. Chem. Int. Ed., 50: 3799–3802. doi: 10.1002/anie.201100338
- Issue published online: 5 APR 2011
- Article first published online: 14 MAR 2011
- Manuscript Received: 14 JAN 2011
- Fonds der Chemischen Industrie
- catalyst recycling;
- homogeneous catalysis;
- phosphenium cations
Cationic but electron-rich: Cyclopropenylylidene-stabilized phosphenium cations exhibit the electron richness of classical trialkyl and triaryl phosphines even though they carry a positive charge stemming from a cationic substituent directly bonded to the phosphorous atom. These two facts have been exploited to synthesize gold catalysts that can be easily recycled after use.