Hydrophosphonylation of activated alkenes and alkynes via fluoride ion activation in ionic liquid medium |
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| Authors: | E Balaraman |
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| Institution: | School of Chemistry, University of Hyderabad, Hyderabad 500046, AP, India |
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| Abstract: | A simple transition metal-free hydro/hydrothiophosphonylation of Baylis-Hillman adducts, substituted allyl bromides, 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 one. Structures of key products are proven by X-ray crystallography. |
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| Keywords: | Hydrophosphonylation Baylis-Hillman adducts Fluoride activation Penta-coordinate phosphorus X-ray structure Ionic liquid medium |
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