Syntheses of Thiazole Heterocyclic Azo-Disperse Dyes and Calculation of Their Electronic Absorption Spectra

Using derivatives of 2-aminothiazole as diazo components and derivatives of N, N-disubstituted aniline as coupling components, the authors synthesized and purified twe-nty different thiazole heterocyclic azo-disperse dyes. The maximal absorption Wavelengths of the dyes were calculated by the modified SCF-PPP-CI method and compared with experi-mental data. A good linear relation has been found.