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Synthesis and reactivity of a fluorinated dienophile

โœ Scribed by P.J. Crowley; J.M. Percy; K. Stansfield

Book ID
103407943
Publisher
Elsevier Science
Year
1996
Tongue
French
Weight
203 KB
Volume
37
Category
Article
ISSN
0040-4039

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Synthesis and dienophilic reactivity of
Synthesis and dienophilic reactivity of 1,2-difluorovinylphenylsulfone
โœ C. De Tollenaere; L. Ghosez ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 621 KB

1,2-Difluorovinylphenylsulfone 5 was conveniently prepared in three steps from chlorotrifluoroethylene. Both E and Z isomers of 5 gave excellent yields of [4+2] cycloadducts with cyclopentadiene. The E isomer reacted with high kinetic exo selectivity. 1,2-Difluorovinylphenylsulfone 5 did not give cy