Transition Metal Complexes of Diazenes, Part 32. This work was supported by the Volkswagen-Stiftung. Part 31: D. Garn, F. Knoch, H. Kisch J. Organomet. Chem.1993, 444, 155.
Article first published online: 22 DEC 2003
Copyright © 1994 by VCH Verlagsgesellschaft mbH, Germany
Angewandte Chemie International Edition in English
Volume 33, Issue 15-16, pages 1603–1605, September 2, 1994
How to Cite
Halbritter, G., Knoch, F., Wolski, A. and Kisch, H. (1994), Functionalization of Aromatic Azo Compounds by the Cobalt-Catalyzed, Regioselective Double Addition of Tolane: 2,6-Distilbenylazobenzenes and 2,3-Dihydrocinnolines. Angew. Chem. Int. Ed. Engl., 33: 1603–1605. doi: 10.1002/anie.199416031
Dedicated to Professor Borislav Bogdanović on the occasion of his 60th birthday
- Issue published online: 22 DEC 2003
- Article first published online: 22 DEC 2003
- Manuscript Received: 24 FEB 1994
The substitution pattern determines whether distilbenylazobenzene compounds 1 or their subsequent products, the dihydrocinnolines 2, are isolated in the cobalt-catalyzed solvent-free reaction of azo compounds with diphenylacetylene. For several derivatives a photochromic equilibrium exists between the two forms.