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Journal article

Intramolecular hydroamination catalysed by Ag complexes stabilised in situ by bidentate ligands

By Beeren, Sophie R.; Dabb, Serin L.; Messerle, Barbara A.

From

School of Chemistry, The University of New South Wales, NSW, Australia

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 129h−1 for the cyclisation of 4-pentyn-1-amine.

Language: English
Year: 2009
Pages: 309-312
ISSN: 18728561 and 0022328x
Types: Journal article
DOI: 10.1016/j.jorganchem.2008.10.038
Keywords

Alkynylamine Bidentate ligand Cyclisation Hydroamination Silver catalyst Triflate

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