A conjugated polymer based on benzodithiophene and thienopyrazine with the following formula is provided,
Wherein x+y=2, 0
Thieno[3,4-<i>b</i>]pyrazines: Synthesis, Structure, and Reactivity
作者:Don D. Kenning、Kari A. Mitchell、Tessa R. Calhoun、Melanie R. Funfar、Daniel J. Sattler、Seth C. Rasmussen
DOI:10.1021/jo0262255
日期:2002.12.1
the efficient preparation of 2,3-disubstituted thieno[3,4-b]pyrazines. These methods eliminate problems in the preparation of the precursor 3,4-diaminothiophene and utilize alpha-diones prepared through the reaction of the appropriate organocuprates with oxalyl chloride. This combination allows the convenient preparation of thieno[3,4-b]pyrazine and its 2,3-disubstituted analogues (where substituent
已经开发了用于有效制备2,3-二取代的噻吩并[3,4-b]吡嗪的通用合成途径。这些方法消除了前体3,4-二氨基噻吩的制备中的问题,并利用了通过适当的有机铜酸酯与草酰氯反应而制备的α-二酮。这种结合使得可以方便地高产率地制备噻吩并[3,4-b]吡嗪及其2,3-二取代的类似物(其中取代基=甲基,己基,辛基,癸基,十二烷基和苯基)。还描述了这类化合物的结构和反应性,包括结构,电化学和pK(a)研究的结果。