二噻吩并[2,3-b:3′,2′-d]噻吩单醛与双醛的制备首先通过两种方法产生芳基负离子:1)溴代并三噻吩在四氢呋喃中与正丁基锂发生的溴锂交换;2)用LDA对二噻吩并[2,3-b:3′,2′-d]噻吩去质子化作用.其后经无水DMF猝灭制备出目标化合物.并利用正丁基锂对二噻吩并[3,2-b:2′,3′-d]噻吩进行去质子化,从而制备相应的单醛与双醛产物.通过红外、核磁、质谱、高分辨质谱以及元素分析等手段对目标产物进行了表征. Preparation of Dithieno [2,3-b: 3 ’, 2’-d] thiophene monoaldehydes and dialdehydes The aryl anions were first produced by two methods: 1) Bromo tristhiophene was reacted with n-butyl Lithium-exchanged lithium bromide; 2) Deprotonation of dithieno [2,3-b: 3 ’, 2’-d] thiophene with LDA followed by quenching with anhydrous DMF to prepare the target compound. The corresponding monoaldehydes and dialdehyde products were prepared by the deprotonation of thieno [3,2-b: 2 ’, 3’-d] thiophene with n-butyllithium.The structures were characterized by IR, NMR, MS, Mass spectrometry and elemental analysis of the target product was characterized.