1380447-22-2Relevant academic research and scientific papers
Allenylphosphonates/allenylphosphine oxides as intermediates/precursors for intramolecular cyclization leading to phosphorus-based indenes, indenones, benzofurans, and isochromenes
Sajna,Kumara Swamy
experimental part, p. 5345 - 5356 (2012/08/27)
Utilizing internally available functional groups, a simple protocol for the efficient synthesis of phosphorus-based indenes, indenones, benzofurans, and isochromenes via intramolecular cyclization of allene intermediates/precursors is generated; the latter intermediates/precursors are conveniently obtained through aldehyde-, alkylidene-, and hydroxyl-functionalized propargyl alcohols and PIII-Cl precursors. The structures of key products have been unequivocally confirmed by X-ray crystallography.
