Versatile transamination in quinonediimine chemistry: Towards a novel class of water soluble UV/violet chromophores
作者:Zhongrui Chen、Maxime Bert、Simon Pascal、Gabriel Canard、Olivier Siri
DOI:10.1016/j.tetlet.2019.151024
日期:2019.9
5-diaminobenzoquinonediimine (QDI) with ethylenediamine gave fluorescent 1,2,3,4-tetrahydropyrazino[2,3-g]quinoxaline (1). When the same reaction was carried out with N,N’-bis(aminoethyl)-1,3-propanediamine, a novel cationic quinoxalinium species (2) was isolated, which can be further condensed with p-cyanobenzaldehyde to afford a benzimidazolo-fused quinoxaline dye (3) that is a water-soluble fluorophore in the
2,5-二氨基苯并醌亚胺(QDI)与乙二胺的氨基转移反应产生荧光1,2,3,4-四氢吡嗪并[2,3- g ]喹喔啉(1)。当使用N,N'-双(氨基乙基)-1,3-丙二胺进行相同的反应时,分离出一种新型的阳离子喹喔啉鎓物种(2),可以将其与对氰基苯甲醛进一步缩合,得到苯并咪唑并稠合的化合物。喹喔啉染料(3)是紫外可见范围内的水溶性荧光团。