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Selective palladium-mediated synthesis of racemic 4,5-disubstituted 5H-furan-2-ones from 3-ynoic acids and organic halides

✍ Scribed by Renzo Rossi; Fabio Bellina; Matteo Biagetti; Luisa Mannina

Book ID
104259957
Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
254 KB
Volume
39
Category
Article
ISSN
0040-4039

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✦ Synopsis

Racemic 4,5-disubstitued 5H-furan-2-ones have been selectively synthesized by addition of 1.2-1.6 equiv of aryl, alkenyl or 1-alkynyl halides and catalytic amounts of Pd(OAc)2 and a soft ligand such as tri-2-furylphosphine or triphenylarsine to the reaction mixtures obtained by treatment of 3-ynoic acids with 1.1 equiv of t-BuOK in DMSO at 20 Β°C.

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