A catalytically relevant intermediate in the synthesis of cyclic polymers from alkynes.
Christopher D RolandTianyu ZhangSudarsan VenkatRamaniIon GhivirigaAdam S VeigePublished in: Chemical communications (Cambridge, England) (2019)
A tungsten metallacyclopentadiene complex is generated upon treating a trianionic pincer tungsten alkylidyne with dipropargyl fluorene. The metallacyclopentadiene initiates the polymerization of alkynes to give cyclic polyacetylenes via ring expansion polymerization (REP).
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