Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 26, Issue 56, Pages 12831-12838Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202001376
Keywords
alkynes; aluminium; carbonyl-ene metathesis; cycloisomerization; NHC ligand; zinc
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Funding
- China Scholarship Council (CSC)
- CNRS
- MESRI
- Universite Paris-Sud
- ANR [ANR-18-CE07-0033-01]
- Ecole Polytechnique
- Agence Nationale de la Recherche (ANR) [ANR-18-CE07-0033] Funding Source: Agence Nationale de la Recherche (ANR)
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The catalytic activity of cationic NHC-Zn(II)and NHC-Al-III(NHC=N-heterocyclic carbene) complexes in reactions that require the electrophilic activation of soft C-C pi bonds has been studied. The former proved able to act as a soft pi-Lewis acid in a variety of transformations. The benefit of the bulky IPr NHC ligand was demonstrated by comparison with simple ZnX(2)salts. The tested NHC-Al(III)catalyst is not able to activate C-C pi bonds but simple AlX(2)(+)ions were found potent in some cases.
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