DOI: 10.1055/s-00000083



Although the Ni(0)-catalyzed ring-opening dimerization of cyclopropenones to give 1,4-benzoquinones has been developed, no catalytic ring-opening coupling reactions of cyclopropenones with alkenes have been reported so far. See: Noyori R. Umeda I. Takaya H.
Chem. Lett. 1972; 1189 . As for Rh(I) catalyzed ring-opening coupling reaction of cyclopropenones with alkynes, see Ref. 16

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