ethyl 8-methyl-4-(tert-butyldimethylsilyloxy)-non-7-en-2-ynoate 在
cyclopentadienylruthenium(II) trisacetonitrile hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 6.0h,
以54%的产率得到[2-(tert-Butyl-dimethyl-silanyloxy)-5-isopropenyl-cyclopent-(Z)-ylidene]-acetic acid ethyl ester