Synthesis of diatropic highly benzannelated annulenes.
                                
                                    
                                        作者:Reginald H Mitchell、Ramanathan Mahadevan                                    
                                    
                                        DOI:10.1016/s0040-4039(01)92439-6
                                    
                                    
                                        日期:1981.1
                                    
                                    The first examples of annelated cis-dihydropyrenes, 16, 18, 19, together with a number of highly annelated trans-dihydropyrenes, 2 - 4 and, 17, are described. All are diatropic and indicate that higher annelation does not remove the delocalisation in a macrocyclic ring.
                                    稠合的第一实施例的顺-dihydropyrenes,16,18,19,与多个高度稠合在一起的反式-dihydropyrenes,2 - 4和,17,进行说明。所有这些都是亲核的,表明较高的成环作用并不能消除大环中的离域。