The Pauson-Khand reaction of alkyne-dicobalt hexacarbonyl complexes, p
repared in situ in dichloromethane/t-BuOH using cobalt(II) bromide/Zn/
CO(latm)/alkyne, takes place readily at 25 degrees C in the presence o
f certain amines. (C) 1997 Elsevier Science Ltd. All rights reserved.