6-butyl-2,3,4,5-tetraethyl-1-phenylethynyl-2,3,4,5-tetracarba-nido-hexaborane(6) 、
carbon monoxide,cobalt,cyclopenta-1,3-diene 以
甲苯 为溶剂,
以73%的产率得到(eta.5-cyclopentadienyl)(η4-2,5-bis[2,3,4,5-tetraethyl-6-butyl-2,3,4,5-tetracarba-nido-hexaboranyl]-3,4-diphenylcyclopentadienone)cobalt(I)