4-[(Z)-4-[tert-butyl(dimethyl)silyl]oxybut-2-enyl]-4-prop-2-ynylcyclohex-2-en-1-one 在
cyclopentadienylruthenium(II) trisacetonitrile hexafluorophosphate 作用下,
以
丙酮 为溶剂,
反应 1.5h,
以92%的产率得到2-[2-[tert-butyl(dimethyl)silyl]oxyethenyl]-3-methylidenespiro[4.5]dec-9-en-8-one