1-(5-methoxy-2-methyl-benzo[b]thiophen-3-yl)-2-(6'-methoxy-2'-methylbenzo[b]thiophen-3'-yl)hexafluorocyclopentene                                                                                                                                                              在
                                                                                                                                                                                 
三溴化硼                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                以91%的产率得到1-(5-hydroxy-2-methylbenzo[b]thiophen-3-yl)-2-(6'-hydroxy-2'-methylbenzo-[b]thiophen-3'-yl)hexafluorocyclopentene