83917-81-1Relevant articles and documents
Rhodium Carbonyl Catalyzed Carbonylation of Unsaturated Compounds. 2. Synthesis of 5-Alkoxy-2(5H)-furanones by the Carbonylation of Acetylenes in Alcohol
Mise, Takaya,Hong, Pangbu,Yamazaki, Hiroshi
, p. 238 - 242 (2007/10/02)
The carbonylation of diphenylacetylene (1a) in ethanol in the presence of Rh4(CO)12/Na2CO3 as a catalyst gave 5-ethoxy-3,4-diphenyl-2(5H)-furanone (3b) in a 72percent yield, together with 3-(ethoxycarbonyl)-2-phenylindanone (11percent) and diethyl 2,3-dip