A nickel-catalyzed cross-coupling of alkenyl methyl ethers with Grignard reagents, undermildconditions, is described. These conditions allowed access to various stilbenes and heterocyclic stilbenic derivatives as well as to a potential anticancer agent DMU-212.
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).