4.6 Article

Chiral Bis(Imidazolidine) Pyridine-Cu Complex-Catalyzed Enantioselective [3+2]-Cycloaddition of Azomethine Imines with Propiolates

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MOLECULES
卷 17, 期 5, 页码 6170-6178

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MDPI
DOI: 10.3390/molecules17056170

关键词

pyrazolone; [3+2] cycloaddition; asymmetric synthesis; catalyst; chiral ligand

资金

  1. Ministry of Education, Culture, Sports, Science and Technology, Japan
  2. Takeda Science Foundation
  3. Grants-in-Aid for Scientific Research [23655078] Funding Source: KAKEN

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[3+2] Cycloaddition of azomethine imines with electron-deficient terminal alkynes was smoothly catalyzed by a chiral bis(imidazolidine) pyridine-CuOAc complex to give bicyclic pyrazolo[1,2-a] pyrazolone derivatives with up to 74% ee.

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