Gold(I)-Catalyzed, Highly Diastereoselective, Tandem Heterocyclizations/[3+2] Cycloadditions: Synthesis of Highly Substituted Cyclopenta[c]furans
作者:Hongyin Gao、Xingxing Wu、Junliang Zhang
DOI:10.1002/chem.201003363
日期:2011.3.1
The domino effect: A novel, cationic, gold(I)‐catalyzed [3+2], tandem bicyclization, which provides rapid, efficient, and diastereoselective access to highly substituted cyclopenta[c]furans from simple, readily available 2‐(1‐alkynyl)‐2‐alken‐1‐ones and 3‐styrylindoles under mild conditions, is described (see scheme).
Rhenium-Catalyzed Regiodivergent Addition of Indoles to Terminal Alkynes
作者:Dexin Xia、Yin Wang、Zhenting Du、Qi-Yu Zheng、Congyang Wang
DOI:10.1021/ol203199m
日期:2012.1.20
An efficient rhenium-catalyzed site-switchable addition of indoles to terminal alkynes is described. A variety of bisindolylalkane derivatives are expeditiously synthesized in high yields with excellent regioselectivity. Preliminary mechanistic study sheds light on the observed regiodivergent addition.