Asymmetric Inter- and Intramolecular Cyclopropanation of Alkenes Catalyzed by Chiral Ruthenium Porphyrins. Synthesis and Crystal Structure of a Chiral Metalloporphyrin Carbene Complex
β Scribed by Che, Chi-Ming; Huang, Jie-Sheng; Lee, Fu-Wa; Li, Yan; Lai, Tat-Shing; Kwong, Hoi-Lun; Teng, Pang-Fei; Lee, Wing-Sze; Lo, Wai-Cheung; Peng, Shie-Ming; Zhou, Zhong-Yuan
- Book ID
- 117995608
- Publisher
- American Chemical Society
- Year
- 2001
- Tongue
- English
- Weight
- 161 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0002-7863
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## Abstract The novel heterogeneous Ruβcomplex is highly efficient in the preparation of transβcyclopropanes such as (III) and (V), which are formed in most cases with excellent diastereoselectivity and enantioselectivity.
Iodo-(5,10,15,20-tetrakis(1,2,3,4,5,6,7,8-octahydro-1,4:5,8-dimethanoanthracen-9-yl)porphyrinatorhodium(III), designated as [Rh(P\*)(I)], was prepared and its catalytic activity in the asymmetric cyclopropanation of alkenes with ethyl diazoacetate (EDA) was examined. High catalyst turnovers (TON >10
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