Synthesis of Dithieno[2,3-<i>b</i>:3‘,2‘-<i>d</i>]thiophenesBuilding Blocks for Cross-Conjugated β-Oligothiophenes
作者:Makoto Miyasaka、Andrzej Rajca
DOI:10.1021/jo060038f
日期:2006.4.1
Syntheses of annelated and functionalized β-trithiophenes (dithieno[2,3-b:3‘,2‘-d]thiophenes), building blocks for the helically annelated, cross-conjugated β-oligothiophenes, are reported. UV−vis spectra reveal that the effect of octyl substituents on the onset of electronic absorption in annelated β-trithiophenes is negligible compared to the effect of helical distortion in the higher β-oligothiophenes
报道了退火和官能化的β-三噻吩(二硫代[2,3- b:3',2'- d ]噻吩)的合成,这是螺旋退火的,交叉共轭的β-低聚噻吩的结构单元。紫外可见光谱显示,与较高的β-低聚噻吩中的螺旋形变形相比,在取代的β-三噻吩中辛基取代基对电子吸收的影响可忽略不计。