Journal
MOLECULES
Volume 17, Issue 5, Pages 6170-6178Publisher
MDPI
DOI: 10.3390/molecules17056170
Keywords
pyrazolone; [3+2] cycloaddition; asymmetric synthesis; catalyst; chiral ligand
Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Takeda Science Foundation
- 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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