- RHODIUM CARBONYL-CATALYZED CARBONYLATION OF ACETYLENES IN THE PRESENCE OF OLEFINS AND PROTON DONORS. SYNTHESIS OF 5-ALKYL-2(5H)-FURANONES.
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Rhodium carbonyl-catalyzed reactions of internal acetylenes with ethylene and CO in protic solvents, e.g., ethanol, gave 3,4-disubstituted-5-ethyl-2(5H)-furanones in good yields.By using propylene or methyl acrylate instead of ethylene, small amounts of 5-n-/isopropyl-2(5)H-furanones or 5--2(5H)-furanone were obtained.
- Hong, Pangbu,Mise, Takaya,Yamazaki, Hiroshi
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p. 989 - 992
(2007/10/02)
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