HexO only, 35% Hexo: Hendo=): It 93% Hexo: Hendo= I:), 65% HeXo:(Hendo+ 3rd isomer Ii: I, 75% of cobalt to convert acyclic and achiral diynenes to highly functionalizable diene- cobalt complexes containing a new chiral center. Heating diynene 1 (1 equiv) with C~ CO (CO)~(1.1 equiv) in isooctane under N2 for 4-5 days followed by chromatography on alumina yielded the complexes 2 (Scheme I). The structure of the products was assigned ...
