Silaethene in Pyrolysis of Spirosilafluorene>

Article abstract of DOI:10.1246/bcsj.60.2263

A new silaspiro compound, i.e., spirosilafluorene>(1) was synthesized in 75percent yield.It was found that the pyrolysis of 1 at 650 deg C under a reduced pressure gave a head-to-tail silaethene dimer in 15percent yield.Copyrolysis of 1 in the presence of benzophenone gave 1,1-diphenylethene and a siloxane oligomer in 50 and 30percent yield, respectively.