Authors: John F. Briones and Huw M. L. Davies
J. Am. Chem. Soc.,
2012, 134 (29), 11916–11919
Highly enantioselective cyclopropenation of internal alkynes with aryldiazoacetates was achieved using the binuclear gold catalyst (S)-xylylBINAP(AuCl)2, activated by silver hexafluoroantimonate.