(E,E)-bis(2-dimethylchlorosilylvinyl)dimethylsilane 、
bis<<(bromomagnesio)ethynyl>dimethylsilyl>acetylene 以
四氢呋喃 为溶剂,
以0.7%的产率得到1,1,4,4,7,7,10,10,13,13,16,16,19,19,22,22,25,25,28,28-eicosamethyl-1,4,7,10,13,16,19,22,25,28-decasilacyclotriaconta-2,5,17,20-tetraene-8,11,14,26,29-hexaine