## carbenes • cobalt • diazoacetates • enantioselectivity • porphyrinoids Scheme 1. The use of a cobalt(II)-porphyrin catalyst for the cyclopropanation of olefins. Electron-sufficient, electron-neutral, and electron-deficient olefins can be used.
✦ LIBER ✦
ChemInform Abstract: Exceptional Selectivity in Cyclopropanation Reactions Catalyzed by Chiral Cobalt(II)—Porphyrin Catalysts
✍ Scribed by Michael P. Doyle
- Publisher
- John Wiley and Sons
- Year
- 2009
- Weight
- 15 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Abstract
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## Abstract The novel heterogeneous Ru‐complex is highly efficient in the preparation of trans‐cyclopropanes such as (III) and (V), which are formed in most cases with excellent diastereoselectivity and enantioselectivity.