Abstract
A series of silver complexes generated in situ from AgOSO2CF3 (AgOTf) and a range of bidentate ligands were investigated as catalysts for the intramolecular hydroamination of 4-pentyn-1-amine. A variety of P- and N-donor ligands were tested including the novel pyrazole-phosphine ligand 1-(2-(diphenylphosphino)phenyl)pyrazole. The best catalyst was formed from equimolar amounts of the P,N-donor ligand 1-(2-(diphenylphosphino)ethyl)pyrazole and AgOTf, which achieved a turnover rate of 129 h-1 for the cyclisation of 4-pentyn-1-amine.
Original language | English |
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Journal | Journal of Organometallic Chemistry |
Volume | 694 |
Issue number | 2 |
Pages (from-to) | 309-312 |
Number of pages | 4 |
ISSN | 0022-328X |
DOIs | |
Publication status | Published - 2009 |
Externally published | Yes |
Keywords
- Biochemistry
- Inorganic Chemistry
- Organic Chemistry
- Physical and Theoretical Chemistry
- Materials Chemistry
- Alkynylamine
- Bidentate ligand
- Cyclisation
- Hydroamination
- Silver catalyst
- Triflate
- Amination
- Amines
- Catalysis
- Catalysts
- Cyclization
- Organic compounds
- Phosphorus compounds
- Silver
- Sugar (sucrose)
- Ligands