Gold(I)-Catalyzed<i>endo</i>-Selective Intramolecular α-Alkenylation of β-Yne-Furans: Synthesis of Seven-Membered-Ring-Fused Furans and DFT Calculations
作者:Zhe Dong、Cheng-Hang Liu、Yi Wang、Mu Lin、Zhi-Xiang Yu
DOI:10.1002/anie.201306965
日期:2013.12.23
Alkenylation of furans: An efficient gold‐catalyzed endo‐selective intramolecular α‐alkenylation of β‐alkyne‐substituted furans has been developed to synthesize challenging seven‐membered‐ring‐fused furans in good to excellent yields. Preliminary DFT calculations have been carried out to understand the experimentally observed regioselectivity. DME=1,2‐dimethoxyethane, Ts=p‐toluenesulfonyl.
呋喃的烯基:一个有效的金催化内切-选择性分子内β -炔基取代的呋喃的α烯基化已发展到合成具有挑战性良好7元环稠合的呋喃,以优异的产率。已经进行了初步的DFT计算以了解实验观察到的区域选择性。DME = 1,2-二甲氧基乙烷,Ts =对甲苯磺酰基