Cascade Reactions: A Multicomponent Approach to Functionalized Indane Derivatives by a Tandem Palladium- Catalyzed Carbamoylation/Carbocylization Process
                                
                                    
                                        作者:Bartolo Gabriele、Lucia Veltri、Raffaella Mancuso、Carla Carfagna                                    
                                    
                                        DOI:10.1002/adsc.201301051
                                    
                                    
                                        日期:2014.8.11
                                    
                                    AbstractA novel, multicomponent and stereoselective approach to functionalized indane derivatives is reported. It is based on a tandem process consisting of Pd‐catalyzed oxidative carbamoylation of 2‐(2‐ethynylbenzyl)malonates with carbon monoxide, a secondary amine, and oxygen (with formation of a propiolamide intermediate), followed by carbocyclization, occurring through intramolecular addition of an in situ formed carbanion to the propiolamide moiety.magnified image