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Atropisomeric [(diphosphine)Au2 Cl2 ] complexes and their catalytic activity towards asymmetric cycloisomerisation of 1,6-enynes.

Barreiro EM, Boltukhina EV, White AJ, Hii KK - Chemistry (2014)

Bottom Line: Conversely, the same effect was not observed for ligands based on the binaphthyl (BINAP) series.The catalytic activity of these complexes was subsequently assessed in the enantioselective cycloisomerisation of 1,6-enynes and revealed an over-riding electronic effect: more-electron-rich phosphines promote greater enantioselectivity.The possibility of silver acting as a (co-)catalyst was ruled out in these reactions.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ (UK).

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Possible complexes generated by using different Au/Ag ratios.
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sch04: Possible complexes generated by using different Au/Ag ratios.


Atropisomeric [(diphosphine)Au2 Cl2 ] complexes and their catalytic activity towards asymmetric cycloisomerisation of 1,6-enynes.

Barreiro EM, Boltukhina EV, White AJ, Hii KK - Chemistry (2014)

Possible complexes generated by using different Au/Ag ratios.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4524423&req=5

sch04: Possible complexes generated by using different Au/Ag ratios.
Bottom Line: Conversely, the same effect was not observed for ligands based on the binaphthyl (BINAP) series.The catalytic activity of these complexes was subsequently assessed in the enantioselective cycloisomerisation of 1,6-enynes and revealed an over-riding electronic effect: more-electron-rich phosphines promote greater enantioselectivity.The possibility of silver acting as a (co-)catalyst was ruled out in these reactions.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ (UK).

Show MeSH