Gold Catalysis: Domino Reaction of En-Diynes to Highly Substituted Phenols
作者:A. Stephen K. Hashmi、Tobias Häffner、Matthias Rudolph、Frank Rominger
DOI:10.1002/chem.201100305
日期:2011.7.11
2‐iodoallyl alcohols, various substrates that bear a 2‐alkynylallyl alcohol moiety tethered to an additional alkyne were prepared in one step. Subjection to nitrogen acyclic carbene (NAC)/gold(I) catalysts delivered highlysubstituted phenols in an efficient domino reaction. Furan derivatives were formed as intermediates; this was proven by in situ NMR spectroscopy. The uncommon substitution pattern of