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Asymmetric Hetero-Diels−Alder Reactions of N -Sulfinyl Dienophiles Using Chiral Bis(oxazoline)−Copper(II) and −Zinc(II) Triflates

✍ Scribed by Bayer, Annette; Endeshaw, Molla Mellese; Gautun, Odd R.


Book ID
126046871
Publisher
American Chemical Society
Year
2004
Tongue
English
Weight
141 KB
Volume
69
Category
Article
ISSN
0022-3263

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## Abstract Highly enantioselective Diels–Alder (DA) and inverse‐electron‐demand hetero‐Diels–Alder (HDA) reactions of β,γ‐unsaturated α‐ketoesters with cyclopentadiene catalyzed by chiral __N__,__N′__‐dioxide–Cu(OTf)~2~ (Tf=triflate) complexes have been developed. Quantitative conversion of β,γ‐un