Gold Catalysis: Switching the Pathway of the Furan-Yne Cyclization
作者:A. Stephen K. Hashmi、Matthias Rudolph、Jürgen Huck、Wolfgang Frey、Jan W. Bats、Melissa Hamzić
DOI:10.1002/anie.200900887
日期:2009.7.27
Changing tracks: By the use of alkynyl ethers as directing elements, the furan‐yne cyclization enters a new reaction pathway. Instead of phenols, tetracycles containingtwoheteroatoms and two new stereocenters are formed (see scheme).