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Silaethene Cl2Si=CHCH2tBu, generated as a metastable reaction intermediate by the thermal eliminatio of LiCl from lithiated compound Cl2Si=CHCH2tBu, react with propene, 2-methylpropene, 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, and anthracene to give ene-reaction product, 2+2-, and 2+4-cycloadducts. They are isolated by vacuum fractional distillation method and spectroscopically identified.
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