A versatile and efficient synthesis of bithiophene-based dicarboxaldehydes from a common synthon
作者:Achala Bhuwalka、Jared F. Mike、Jeremy J. Intemann、Arkady Ellern、Malika Jeffries-EL
DOI:10.1039/c5ob01135c
日期:——
use has been limited due to their synthetic inaccessibility. To facilitate the facile synthesis of these compounds we have prepared a novel functional bithiophene, namely 2,2′-(3,3′-dibromo-[2,2′-bithiophene]-5,5′-diyl)bis(5,5-dimethyl-1,3-dioxane) in two high yielding steps from 3,3′,5,5′-tetrabromo-2,2′-bithiophene. This synthon is readily transformed into variety of bithiophene-based dicarboxaldehydes
联噻吩二甲醛是开发基于亚芳基亚乙烯基的有机半导体的有前途的富电子基石,但由于其合成上的不可及性,其使用受到了限制。为了方便这些化合物的合成,我们制备了一种新型的功能性联噻吩,即2,2'-(3,3'-二溴-[2,2'-联噻吩] -5,5'-二基)bis(5, 5-二甲基-1,3-二恶烷)在3,3',5,5'-tetrabromo-2,2'-bithiophene的两个高产率步骤中合成。该合成子也容易以高收率转化成多种基于联噻吩的二甲醛。这些功能分子在亚芳基亚乙烯基连接的供体-受体共聚物的合成中的用途已通过两种具有电子缺陷的苯并双唑的共聚物的合成得到证明。