62.CoBr2-TMTU-Zinc Catalysed-Pauson-Khand Reaction
Y. F. Wang, L. M. Xu, R. C. Yu, J. H. Chen*, Z. Yang*
A cobalt–TMTU complex, derived from the in situ reduction of CoBr2 with Zn in the presence of TMTU, can catalyze Pauson–Khand reaction at a balloon pressure of CO, which enables the synthesis of structurally diverse cyclopentenones. This catalytic system works efficiently for both intermolecular and intramolecular PK reactions.
