作为有机电子材料（如聚合物太阳能电池、有机场效应晶体管等）的关键中间体或功能单体，用于制备高性能共轭聚合物材料，在有机电子器件中发挥重要作用。
有机电子材料; 高分子材料
合成路线 1（1. 合成：1160823-77-7）
产率：87%
合成条件：Stage #1: With sodium hydroxide; zinc In water at 120℃; for 13 h; Stage #2: With tetrabutylammomium bromide In water
实验步骤：称取2.2g苯并[1,2-b：4,5-b']二噻吩-4,8-二酮，加入1.5g单一添加锌粉，6g氢氧化钠，蒸馏水35g，加热回流， 油浴温度控制在120℃，反应时间：13h;溶液迅速从黄色变为红色。随着反应的进行，溶液均匀。此时，5.8g的C8H17Br和0.11g的催化剂当量为 加入四丁基溴化铵TBAB，随着反应的进行，溶液由黑色变为红色，最终变为淡黄色。终止反应：加水淬灭。反应过程：用乙醚多次萃取，无水MgSO4干燥，旋转溶剂，真空 干燥至恒重，得到产物4,8-双（2-乙基 - 己氧基）苯并[1,2-b：4,5-b'二噻吩3.9g，产率为87％。
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