名称:
                                Synth�ses dans la s�rie des bis-ind�no-fluor�nes IV [1] Hydroxy-8-dihydro-9, 15-7H-bis-ind�no[2, 1-b;2?, 1?-g]fluor�ne
                             
                            
                                摘要:
                                Abstract8‐Hydroxy‐9, 15‐dihydro‐7H‐diindeno [2, 1‐b;2′, 1′‐g] fluorene, a derivative of a new mono‐angular diindenofluorene system, has been synthesised in 6 steps (overall yield 42%) starting from 9‐oxo‐fluorene‐1‐carbaldehyde and acetophenone. The corresponding hydrocarbon could not be obtained by reductive scission of the hydroxyl group.