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Silicon-assisted synthesis of thiocarbonyl derivatives and reactivity of dienophilic thioaldehydes

โœ Scribed by Capperucci, Antonella; Degl'Innocenti, Alessandro; Ricci, Alfredo; Mordini, Alessandro; Reginato, Gianna


Book ID
111918011
Publisher
American Chemical Society
Year
1991
Tongue
English
Weight
731 KB
Volume
56
Category
Article
ISSN
0022-3263

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Synthesis and dienophilic reactivity of
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