hexacosamethylene di(3-oxobutanoate)   、                                                                                      
1,1,32,32-tetraphenyl-1,31-dotriacontadiene                                                                                                                                                              在
                                                                                                                                                                                 
manganese(III) triacetate dihydrate   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                                                                                        反应 1.37h,
                                                                                                                以22%的产率得到33,68-dimethyl-3,30,34,67-tetraoxa-2,31-dioxo-35,35,66,66-tetraphenyltricyclo[63.3.0.0(32,36)]octahexaconta-32,68-diene