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1·The invention relates to garland chrysanthemum extract compounds, and a synthesis method and application thereof. The compounds have enol ether-spiro ketal-acetals and unsaturated side chains.

本发明茼蒿素类化合物及其合成方法与应用，该化合物具有烯醇醚-螺环缩酮-缩醛和不饱和侧链。

2·In another direction, the radical cyclization of thioimide with acylsilane produced simple cyclization product in low yield without expected enol silyl ether compound.

对于硫醯亚胺与矽基酮的自由基反应，则是得到低产率的简单环化产物，而不是预期的烯醇矽醚化合物。

3·The Co 2(CO) 8 catalyzed reaction of pentafluorostyrene with triethylsilane and carbon monoxide gives a perfluorophenyl enol silyl ether as a mixture of regio- and stereo-isomers.

五氟苯乙烯与三乙基硅烷、 一氧化碳在八羰基钴催化下反应得一个位置和立体异体（ 五氟苯基烯基硅醚）的混和物。