A Versatile Route to<i>N</i>,<i>N′</i>-(Peraryl)substituted 5,5′-Diamino-2,2′-bithiophenes
作者:Horst Hartmann、Peter Gerstner、Dirk Rohde
DOI:10.1055/s-2002-35620
日期:——
The reaction of 5,5′-dibromo-2,2′-bithiophene with diarylamines in the presence of palladium acetate/tris-(t-butyl)phosphine as catalyst or by a titanium tetrachloride mediated oxidation of 2-(N,N-diarylamino)thiophenes has yielded a series of new N,N′-perarylated 5,5-diamino-2,2′-bithiophenes. These are electron-rich compounds with a low oxidation potential and have a high tendency to form amorphous glasses.
5,5′-二溴-2,2′-双噻吩与二芳胺在醋酸钯/三-(t-丁基)膦作为催化剂的存在下反应,或通过四氯化钛介导的2-(N,N-二芳基氨基)噻吩的氧化反应,得到了系列新的N,N′-亚芳基化的5,5-二氨基-2,2′-双噻吩。这些化合物为富电子化合物,具有低氧化电位,并且具有形成非晶态玻璃的高倾向性。