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Synlett 1996; 1996(7): 697-698
DOI: 10.1055/s-1996-5573
DOI: 10.1055/s-1996-5573
letter
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Dirhodium(II) Tetrakis[alkyl 2-oxaazetidine-4(S)-carboxylates]. A New Set of Effective Chiral Catalysts for Asymmetric Intermolecular Cyclopropanation Reactions with Diazoacetates
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Publikationsverlauf
Publikationsdatum:
31. Dezember 2000 (online)
![](https://www.thieme-connect.de/media/synlett/199607/lookinside/thumbnails/10.1055-s-1996-5573-1.jpg)
Chiral dirhodium(II) azetidinone-carboxylate catalysts provide high enantiocontrol in intermolecular cyclopropanation reactions of diazoacetates (up to 95% ee), and carbene addition occurs with modest cis diastereoselectivity.
asymmetric catalysis - intermolecular cyclopropanation - diazoacetates - chiral dirhodium(II) catalysts - alkyl azetidinone-carboxylates