4.8 Article

Synthesis of Phosphaisocoumarins through Rhodium-Catalyzed Cyclization Using Alkynes and Arylphosphonic Acid Monoesters

Journal

ORGANIC LETTERS
Volume 15, Issue 13, Pages 3358-3361

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol401407v

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Funding

  1. National Research Foundation of Korea (NRF)
  2. Korea government (MSIP) [2011-0018355]

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A rhodium-catalyzed cyclization using alkynes and arylphosphonic acid monoesters for the synthesis of phosphaisocoumarins is reported. A number of arylphosphonic acid monoesters were selectively cyclized in high yields with functional group tolerance. In addition, unsymmetrical alkynes are applied in high regioselectivity.

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