Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 81, Issue 5, Pages 1813-1818Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.5b02528
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Funding
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) [PIP-2011-11220100100268]
- Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT) [Prestamo BID PICT-2010-0669]
- Universidad Nacional del Sur (UNS) from Argentina [PGI 24/Q044]
- CONICET
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A simple and mild methodology for the direct synthesis of alkynylphosphonates is presented. The reaction of a variety of terminal alkynes with dialkyl phosphites in the presence Cu2O (14 mol %) led to the formation of the corresponding alkynylphosphonates in good to excellent yields. Reactions are performed under air, in acetonitrile as solvent, and in the absence of base or ligand additives. This new methodology is compatible with the presence of a wide variety of functional groups on the starting alkynes and can be scaled up to a gram scale.
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