Electron impact mass spectra of isobenzofurans, isonaphthofurans and some of their Diels-Alder adducts
                                
                                    
                                        作者:Peter W. Dibble、Russell Rodrigo                                    
                                    
                                        DOI:10.1002/oms.1210231102
                                    
                                    
                                        日期:1988.11
                                    
                                    AbstractThe mass spectra of a wide variety of substituted isobenzofurans (IBF) have been studied by the direct examination of stable IBFs and IBF ions formed in the retro‐Diels–Alder cleavage of oxabicyclo adducts. In general, the fragmentation patterns observed are very dependent upon the nature and position of substitution. The dimethyl acetylenedkarboxylate adducts also show additional interesting and novel fragmentation pathways that are not IBF related.