Su. Son et al., Dicobalt octacarbonyl catalyzed carbonylated cycloaddition of triynes to functionalized tetracycles, ORG LETT, 3(7), 2001, pp. 1065-1067
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We have demonstrated that a dicobalt octacarbonyl catalyzed double [2 + 2 1] carbonylative cycloaddition reaction of triyne can be carried out to yi
eld a novel 5.5.5.6 tetracyclic di-enone system.