138770-02-2Relevant academic research and scientific papers
An X- (X = I, Br)-triggered ring-opening cyclization of cyclopropenyl-substituted alkyl halides or mesylates: An efficient and highly regioand stereoselective approach to (E)-haloalkylidene 4-7-membered cyclic compounds
Chen, Jie,Ma, Shengming
supporting information; experimental part, p. 5595 - 5598 (2009/12/03)
(Chemical Equation Presented) Polyfunctionalized (E)-haloalkylidene cyclic products were efficiently synthesized in moderate to excellent yields via a regio- and stereoselective X- (X = I or Br)-triggered ring-opening intramolecular trapping of
SYNTHESIS OF ETHYNYLIDENE CYCLOPENTANES BY A CYCLISATION CATALYZED BY THE SIMULTANEOUS PRESENCE OF PALLADIUM (0) AND COPPER (I)
Boussy, Didier,Balme, Genevieve,Gore, Jacques
, p. 6541 - 6544 (2007/10/02)
Ethynylidene cyclopentanes 3 can be formed in 35-71percent yield from the reaction of the enolates of compounds such as δ-acetylenic malonates with 1-halogeno-1-alkynes.This reaction requires catalysis by both palladium (0) and copper (I) species.
