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ChemInform Abstract: Influence of the Solvent Polarity on the Stereoselectivity of the Uncatalyzed [4 + 2] Cycloaddition of Cyclopentadiene to N,N′-Fumaroyldi[(2R)-borane-10,2-sultam].

✍ Scribed by Christian Chapuis; Anna Kucharska; Piotr Rzepecki; Janusz Jurczak

Publisher: John Wiley and Sons
Year: 2010
Weight: 27 KB
Volume: 30
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199911091

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ChemInform Abstract: Influence of Lewis

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Stereoselectivity in the TiCl4-Catalyzed

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The [4 2] cycloaddition of cyclopentadiene to the (2R )-bornane-10,2-sultam derivative (À)-1b of fumaric monomethyl ester proceeds with high endo and p-facial diastereoselectivity in the presence of 0.5 mol-equiv. of TiCl 4 . The major diastereoisomer endo-(2R,3R )-2b, isolated in 87% yield by cryst

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