费舍尔氏醛   、                                                                                      
2,4,2',4'-tetramethyl-3,3'-pentane-1,5-diyl-bis-thiazolium; dibromide                                                                                                                                                              在
                                                                                                                                                                                 sodium perchlorate                                                                                                                                  作用下,
                                                                                                                                                                                        反应 0.08h,
                                                                                                                生成                                                 4,4'-dimethyl-2,2'-bis-[3-(1,3,3-trimethyl-1,3-dihydro-indol-2-ylidene)-propenyl]-3,3'-pentane-1,5-diyl-bis-thiazolium; diperchlorate