Mln. Rao et M. Periasamy, REDUCTIVE PAUSON-KHAND REACTION USING THE (RC-CR')CO-2(CO)(6) CF3COOHSYSTEM/, Journal of organometallic chemistry, 532(1-2), 1997, pp. 143-146
Cyclopentanones are formed in the Pauson-Khand reaction of cobalt alky
ne complexes in the presence of TFA. The in situ precursor complexes w
ere formed on the reduction of CoBr2 by zinc metal in the presence of
the alkynes under carbon monoxide atmosphere.