ChemInform Abstract: Utility of Bifunctional N‐Heterocyclic Phosphine (NHP)‐Thioureas for Metal‐Free Carbon—Phosphorus Bond Construction Toward Regio‐ and Stereoselective Formation of Vinylphosphonates.
Abstract:Utility of Bifunctional N-Heterocyclic Phosphine (NHP)-Thioureas for Metal-Free Carbon-Phosphorus Bond Construction Toward Regio-and StereoselectiveFormation of Vinylphosphonates. -This novel N-heterocyclic phosphine--promoted phospha-Michael/intramolecular nucleophilic substitution reaction allows for the stereoselective construction of vinyldiazaphosphonates in moderate to excellent yields. The Michael addition of the NHP to -substituted or -substituted allenes proceeds with complete regioselectivity and r… Show more
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