decane-1,10-diyl bis(3-oxobutanoate)   、                                                                                      
1,1,20,20-tetraphenyl-1,19-icosanediene                                                                                                                                                              在
                                                                                                                                                                                 
manganese(III) triacetate dihydrate   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                                                                                        反应 0.35h,
                                                                                                                以50%的产率得到17,40-dimethyl-3,14,18,39-tetraoxa-2,15-dioxo-19,19,38,38-tetraphenyltricyclo[35.3.0.0(16,20)]tetraconta-16,40-diene