4-甲基-3戊烯-2-酮 、
[Ru(η5-Cp)(triphenylphosphine)2(CN)] 在
Et
2O-HBF
4 作用下,
以
二氯甲烷 为溶剂,
以66%的产率得到2,3,4,5,6-pentamethyl-1-(3,3,5-trimethylhex-5-en-1-yn-1-yl)-1,1-ditrityl-1l11,2l5,3l5,4l5,5l5-pentacyclo[2.2.0.01,3.01,5.02,6]hexa-2,4-diene compound with neopentane (1:1)