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ChemInform Abstract: Synthesis of Chiral Bis(oxazolinyl)biferrocene Ligands and Their Application to Cu(I)-Catalyzed Asymmetric Cyclopropanation.

✍ Scribed by S.-G. KIM; C.-W. CHO; K. H. AHN

Publisher: John Wiley and Sons
Year: 2010
Weight: 29 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199734041

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✦ Synopsis

Synthesis of Chiral Bis(oxazolinyl)biferrocene Ligands and Their Application to Cu(I)-Catalyzed Asymmetric Cyclopropanation. -Five ligands of type (I) are prepared and used as chiral ligands in the Cu-catalyzed asymmetric cyclopropanation of styrene with diazoacetates. Best results concerning the e.e. values are obtained with derivative (Ib) under optimized conditions A)

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