4-(3,4-dichlorophenyl)-4,5,6,7-tetrahydrobenzo[b]thiophen-4-ol   、                                                                                      
potassium permanganate                                                                                                                                                              在
                                                                                                                                                                                 
乙酸乙酯   、                                                                                                  
Sodium sulfate-III   、                                                                                                  
正己烷   、                                                                                                  
4-(3,4-dichlorophenyl)-4-hydroxy-5,6-dihydrobenzo[b]thiophen-7(4H)-one                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
acetone - water   、                                                                                         
water-ethyl acetate                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以Hexane (20%) to yield 225 mg of the desired product, 4-(3,4-dichlorophenyl)-4-hydroxy-5,6-dihydrobenzo[b]thiophen-7(4H)-one的产率得到4-(3,4-dichlorophenyl)-4-hydroxy-5,6-dihydrobenzo[b]thiophen-7(4H)-one