The Synthesis and Color of Pyrido[1′,2′ : 1,2]pyrimido[4,5-<i>b</i>]acridine-7,15-diones
作者:Yasukazu Yokoyama
DOI:10.1246/bcsj.56.1775
日期:1983.6
investigated in order to elucidate the relationshipbetween the color and the chemical constitution in contrast to the related compounds, quinacridone and pyrido[2,1-b]pyrido[1′,2′ : 1,2]pyrimido[4,5-g]quinazoline-7,15-dione. The absorption spectra in DMSO and in concentrated sulfuric acid show a good correlation with the electronic effect of the substituents. The absorption spectra of the solid are