4.8 Article

Control of Chemoselectivity by Counteranions of Cationic Palladium Complexes: A Convenient Enantioselective Synthesis of Dihydrocoumarins

Journal

ORGANIC LETTERS
Volume 12, Issue 1, Pages 108-111

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol902538n

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Funding

  1. National Basic Research Program of China [2006CB806105]
  2. National Natural Science Foundation of China [20732005, 20872158]
  3. Chinese Academy of Sciences

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High chemoselectivity for the synthesis of two kinds of substituted coumarins controlled by the counteranions of the cationic palladium catalysts is described. The asymmetric version of the reaction for the synthesis of 3-alkylldene dihydrocoumarins is realized with high enantioselectivity.

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