79379-66-1Relevant articles and documents
Silver-catalyzed ring-opening [3+2] annulation of cyclopropenones with amides
Matsuda, Takanori,Tabata, Yuki,Suzuki, Hirotsugu
supporting information, p. 19178 - 19182 (2018/11/26)
A ring-opening [3+2] annulation reaction between cyclopropenones and amides was developed to produce 5-amino-2-furanones. Insertion of the carbonyl group of an amide to the C-C single bond of a cyclopropenone occurred efficiently in the presence of a catalytic amount of silver(i) triflate.
RHODIUM CARBONYL-CATALYZED CARBONYLATION OF ACETYLENES IN THE PRESENCE OF OLEFINS AND PROTON DONORS. SYNTHESIS OF 5-ALKYL-2(5H)-FURANONES.
Hong, Pangbu,Mise, Takaya,Yamazaki, Hiroshi
, p. 989 - 992 (2007/10/02)
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.