2-アミノ-6-プロモ-および2-アミノ-3-プロモ-1-フェナレノンから得られる分散染料

概要

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In connection with the synthesis of phenalenone disperse dyes, acylaminophenalenones and pyridylcarbonylaminophenalenones were synthesized from 2-amino-6-bromo- and 2-amino-3-bromo-1-phenalenone with substituted benzoyl chlorides or pyridinecarbonyl chlorides, and sulfonylamino- and diacylaminophenalenones were synthesized from 2-amino-6-bromo-1-phenalenone with p-substituted benzenesulfonyl chlorides or aromatic and aliphatic dicarboxylic chlorides. Their visible absorption spectra in ο-dichlorobenzene were measured, and their dyeing and fastness properties as disperse dyes on polyester fiber were evaluated. For 2- (substituted benzoylamino) -6-bromo- and 2- (p-substituted phenylsulfonylamino) -6-bromo-1-phenalenones, the relationship between the wave numbers (ν) corresponding to the absorption maxima (λmax) and Brown-Okamoto σ+ values was more linear than that between ν and Hammetts σ values. Their dyeability of the acyl-, pyridyl- and sulfonylaminophenalenones on polyester fiber were good but those of the diacylaminophenalenones were very poor (aromatic diacylaminophenalenones) or not dyeable (aliphatic diacylaminophenalenones). The colors on the fiber were yellow. Most of the dyed cloth showed good fastness to sublimation. The light fastness was good, except that of 2- (substituted benzoylamino) -3-bromo-1-phenalenones and aromatic diacylaminophenalenones.
社団法人有機合成化学協会の論文