Novel structure-defined chiral bis(oxazolinyl)thiophenes for Ru-catalyzed asymmetric cyclopropanation |
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| Authors: | Ming Z Gao |
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| Institution: | Department of Chemistry, Texas A&M University, College Station, TX 77843-3255, USA |
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| Abstract: | The novel structures of sulfur-containing chiral bis(oxazoline) compounds which have been synthesized have been determined by X-ray crystal diffraction analyses. A high enantioselectivity (ee >99%) in the asymmetric cyclopropanation of diphenylethene with diazoester using the bis(oxazoline)-Ru(II) catalyst was obtained. |
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| Keywords: | Asymmetric cyclopropanation Bis(oxazoline) Bis(oxazolinyl)thiophene Ruthenium |
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