Synthesis of Tetrahydrofurans by a Tandem Hydrogen Atom Abstraction/Radical Nucleophilic Displacement Sequence
                                
                                    
                                        作者:David Crich、Xianhai Huang、Martin Newcomb                                    
                                    
                                        DOI:10.1021/ol990564b
                                    
                                    
                                        日期:1999.7.1
                                    
                                    The reaction of a series of 5-(N-phthalimidoxy)-1-phenyl-1-(diphenylphosphatoxy)pentanes with triphenyltin hydride and AIBN provides alkoxy radicals which undergo 1,5-hydrogen atom abstraction to give beta-(phosphatoxy)alkyl radicals. These radicals then take part in a radical nucleophilic displacement leading, after chain transfer, to tetrahydrofurans.