Scope of the Asymmetric Intramolecular Stetter Reaction Catalyzed by Chiral Nucleophilic Triazolinylidene Carbenes
作者:Javier Read de Alaniz、Mark S. Kerr、Jennifer L. Moore、Tomislav Rovis
DOI:10.1021/jo702313f
日期:2008.3.1
A highly enantioselective intramolecular Stetter reaction of aromatic and aliphatic aldehydes tethered to different Michael acceptors has been developed. Two triazolium scaffolds have been identified that catalyze the intramolecular Stetter reaction with good reactivity and enantioselectivity. The substrate scope has been examined and found to be broad; both electron-rich and -poor aromatic aldehydes
作者:Steven M. Mennen、Jarred T. Blank、Michelle B. Tran-Dubé、Jason E. Imbriglio、Scott J. Miller
DOI:10.1039/b414574g
日期:——
Thiazolylalanine, in appropriately functionalized form, has been found to function as an enantioselective catalyst for an intramolecular Stetterreaction. Incorporation of the residue in a number of environments has resulted in a family of catalysts that promote the cyclization of a test substrate with up to 81% enantiomeric excess.