1,3,3-Tris-dimethylamino-propen-(1)   、                                                                                      
5-methyl-2-phenyl-4-(1,2,6-trimethyl-1H-pyridin-4-ylidene)-2,4-dihydro-pyrazol-3-one                                                                                                                                                                                              以
                                                                                         neat (no solvent)                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以77%的产率得到4-{2,6-bis[(1E,3E)-4-dimethylaminobuta-1,3-dienyl]-1-methylpyridin-4(1H)-ylidene}-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one