7-[(E)-2-[7-[(E)-2-(5-hexyl-2-thienyl)vinyl]-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl]vinyl]-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carbaldehyde   、                                                                                      
2,5-bis((2-ethylhexyl)oxy)-p-xylylene-bis(diethylphosphonate)                                                                                                                                                              在
                                                                                                                                                                                 
potassium tert-butylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以90%的产率得到5-[(E)-2-[7-[(E)-2-[2,5-bis(2-ethylhexyloxy)-4-[(E)-2-[5-[(E)-2-[7-[(E)-2-(5-methyl-2-thienyl)vinyl]-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl]vinyl]-2,3-dihydrothieno[3,4-b][1,4]dioxin-7-yl]vinyl]phenyl]vinyl]-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl]vinyl]-7-[(E)-2-(5-methyl-2-thienyl)vinyl]-2,3-dihydrothieno[3,4-b][1,4]dioxine