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Synlett 2006(20): 3525-3528
DOI: 10.1055/s-2006-956494
DOI: 10.1055/s-2006-956494
CLUSTER
© Georg Thieme Verlag Stuttgart · New York
Vanadium-Catalyzed Asymmetric Epoxidation: Proline-Derived Hydroxamic Acids Revisited
Further Information
Publication History
Received
1 September 2006
Publication Date:
08 December 2006 (online)


Abstract
Structural features of ligands and substrates affecting enantioselectivity in vanadium(V)-catalyzed epoxidation of allylic alcohols were investigated. For the hydroxamic acid ligands derived from arylhydroxylamines, 2-aryl-substituted allylic alcohols emerged as the best substrates furnishing good level of enantioselectivity.
Key words
asymmetric catalysis - epoxidations - homogeneous catalysis - ligands - vanadium