We have investigated synthesis as well as purification of 5,5‴-bis(tridecafluorohexyl)-2,2′:5′,2″:5″,2‴-quaterthiophene (BFH-4 T, n-type organic semiconducting material) using supercritical carbon dioxide (scCO₂) as a green solvent. BFH-4T was obtained in good selectivity and high yield by TDAE/PdCl₂-catalyzed reductive coupling reaction of 5-bromo-5′-(tridecafluorohexyl)-2,2′-bithiophene in scCO₂. We have also successfully established purification of the reaction mixture by passing scCO₂ in the reaction vessel. The product was yellow powder of BFH-4T with purity of more than 99% and Pd catalyst was not contained.

我们研究了5,5′-双（三氟铝己基）-2,2′：5′，2″：5″，2′-四噻吩（BFH-4 T，n型有机半导体材料）的合成及纯化使用超临界二氧化碳（scCO ₂）作为绿色溶剂。BFH-4T通过TDAE在良好的选择性和高收率获得/的PdCl ₂催化的5-溴-5'的还原偶合反应- （十三氟）-2,2'-二噻吩在SCCO ₂。我们还通过将scCO ₂传递到反应容器中而成功建立了反应混合物的纯化方法。产物为BFH-4T的黄色粉末，纯度大于99％，并且不包含Pd催化剂。