Synthesis of silicon-carbon spiranes by metathesis on an aluminumrhenium catalyst

Dialkenyl derivatives of i-silacyclobutane and 1-silacyclopent-3-ene with double bonds - and - to the silicon atom undergo metathesis over an aluminumrhenium catalyst to give silaspirocyclic compounds and open-chain organosilicon trienes containing the silacyclobutane and silacyclopentene fragments. Metathesis of allylbutenyl derivatives of silacyclobutane and silacyclopentene provides a convenient synthetic route to 4-silaspiro3,5]non-6-enes and 5-silaspiro4,5]deca-2,7-dienes.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2797–2803, December, 1989.