Gold(i)-catalyzed Claisen rearrangement of allenyl vinyl ethers; synthesis of substituted 1,3-dienes
作者:Marie E. Krafft、Kassem M. Hallal、Dinesh V. Vidhani、John W. Cran
DOI:10.1039/c1ob06297b
日期:——
Synthesis of substituted 1,3-dienes was achieved viagold(I)-catalyzed Claisen rearrangement of allenyl vinylethers. The N-heterocyclic carbenegold chloride catalyst (IPrAuCl) was superior in terms of activity and selectivity and afforded the 3,3-product in excellent yields. A proposed cation-π inter-action played a significant role in affecting the reaction rate.