ChemInform Abstract: Photochemical Promotion of the Intramolecular Pauson-Khand Reaction. A New Experimental Protocol for Cobalt-Catalyzed (2 + 2 + 1) Cycloadditions.
β Scribed by B. L. PAGENKOPF; T. LIVINGHOUSE
- Book ID
- 112033912
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 32 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0931-7597
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π SIMILAR VOLUMES
Heat alone has been found sufficient to promote intramolecular Pauson-Khand cyclizations catalyzed by high purity Co2(CO)s. The existence of a very narrow thermal window (e.g., 60 Β°C -70 Β°C) for the attainment of efficient catalysis is a noteworthy characteristic of this process.
The Catalytic Pauson-Khand Reaction Promoted by a Small Amount of 1,2-Dimethoxyethane or Water. -Catalytic amounts of 1,2-dimethoxyethane or water, both hard Lewis bases with low nucleophilicity, are found to be efficient promotors of the Pauson-Khand cyclization of a variety of structurally differ