4.8 Article

Intramolecular, Pd/Cu-Co-catalyzed P-C Bond Cleavage and Addition onto an Alkyne: A Route to Benzophospholes

Journal

ORGANIC LETTERS
Volume 17, Issue 22, Pages 5722-5724

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.5b02926

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Funding

  1. National Natural Science Foundation [21272218]
  2. Specialized Research Fund for the Doctoral Program of Higher Education [20134101110004]
  3. Henan Science and Technology Department [144300510011]
  4. Zhengzhou Science and Technology Department [131PYSGZ204]
  5. Zhengzhou University of China

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Under Pd(II)/CuI cocatalysis, o-diarylphosphinophenylalkynes cyclize in boiling toluene via CP bond cleavage and arylphosphination of the C=C bond. This protocol provides an unprecedented atom- and step-efficient access to optoelectronically and biologically interesting benzophospholes.

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