(E)-2-formyl-6,6'-bis(4,5-dihydro-6H-3-n-octyl-cyclopenta[b]thienylidene) 、
diethyl (E)-((3,3'-dioctyl-4,4',5,5'-tetrahydro-[6,6'-bi(cyclopenta[b]thiophenylidene)]-2-yl)methyl)phosphonate 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
反应 5.0h,
以93%的产率得到(6E)-3-octyl-6-(3-octyl-4,5-dihydrocyclopenta[b]thiophen-6-ylidene)-2-[(E)-2-[(6E)-3-octyl-6-(3-octyl-4,5-dihydrocyclopenta[b]thiophen-6-ylidene)-4,5-dihydrocyclopenta[b]thiophen-2-yl]ethenyl]-4,5-dihydrocyclopenta[b]thiophene