Hydrophosphonylation of activated alkenes and alkynes via fluoride ion activation in ionic liquid medium
作者:E. Balaraman、Venu Srinivas、K.C. Kumara Swamy
DOI:10.1016/j.tet.2009.06.096
日期:2009.9
hydro/hydrothiophosphonylation of Baylis–Hillman adducts, substituted allylbromides, allenylphosphonates and alkynes, promoted by fluoride ion in ionic liquid, is described. Clear-cut evidence for fluoride activation of the phosphite via pentacoordinate phosphorus is provided for the first time. Also, in a comparative reaction, the product obtained was different from that from the palladium catalyzed