噻吩,2,5-二氯-3,4-二(氯甲基)- 、
三缩四乙二醇 在
sodium hydride 作用下,
生成
18,20-dichloro-3,6,9,12,15-pentaoxa-19-thiabicyclo<15.3.0>eicosa-1(20),17-diene 、 18,20,38,40-tetrachloro-3,6,9,12,15,23,26,29,32,35-decaoxa-19,39-dithiatricyclo<35.3.0.0
17,21>tetraconta-1(40),17,20,37-tetraene