124583-32-0Relevant articles and documents
Generation of Vinylcarbenes by the Intramolecular Addition of α-Diazo Ketones to Acetylenes
Padwa, Albert,Chiacchio, Ugo,Kassir, Jamal M.,Krumpe, Keith E.,Schoffstall, Allen M.
, p. 414 - 416 (1990)
Treatment of several α-diazo alkynyl substituted ketones with rhodium(II) carboxylates results in intramolecular addition to the acetylenic ?-bond to give a transient cyclopropene which spontaneously rearranges to a vinyl carbene intermediate.