Tetrahedron Letters p. 989 - 990 (1999)
Update date:2022-08-11
Topics:
Gabriele, Bartolo
Salerno, Giuseppe
Costa, Mirco
Chiusoli, Gian Paolo
3-Alkyl- or 3-aryl-substituted furan-2(5H)-ones are obtained directly in fair yields by reductive carbonylation of alk-1-ynes in the presence of catalytic amounts of palladium iodide in conjunction with potassium iodide (10 eq.) and water (200 eq.). Simultaneous oxidation of CO to CO2 accounts for the stoichiometry of the process. Reactions are carried out in dioxane under mild conditions (80 °C and 10 atm of carbon monoxide).
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