The author of 《Synthesis of benzothiazole-azo disperse dyes for high resistance to alkaline treatments and peroxide bleaching》 were Yu, Jiaxue; Tang, Jinglin; Wang, Xiaoyan; Du, Jinmei; Xu, Changhai; Zhang, Shansheng. And the article was published in Pigment & Resin Technology in 2022. Application In Synthesis of 6-Chlorobenzothiazol-2-ylamine The author mentioned the following in the article:
Purpose: This paper aims to synthesize benzothiazole-azo disperse dyes which can be applied not only for dyeing and alk. reduction of polyester fabric in one bath, but also for dyeing and peroxide bleaching of cotton/polyester blend fabric in one bath. Design/methodol./approach: The synthesized benzothiazole-azo disperse dyes were confirmed by proton NMR (1H-NMR) spectroscopy, mass spectroscopy (MS) and UV-visible spectrophotometry. The performance on resistance to alk. treatment and peroxide bleaching was tested by measuring the color strength of polyester fabric dyed with the synthesized benzothiazole-azo disperse dyes under high-temperature and high-pressure conditions. Findings: Increasing the electron-withdrawing ability of the substituents in the diazo component and the electron-donating ability of the substituents in the coupling component resulted in a significant bathochromic shift of the maximum absorption wavelength. Except that the disperse dyes synthesized from the coupling components containing the hydroxyethyl group were unstable in alk. solution, all others exhibited high resistance to alk. treatment and peroxide bleaching. Practical implications: The synthesized benzothiazole-azo disperse dyes provide the opportunities to combine dyeing and alk. reduction of polyester fabric into one bath, and combine dyeing and peroxide bleaching of cotton/polyester blend fabric into one bath. Originality/value: The synthesized benzothiazole-azo disperse dyes help to establish short processes of polyester and polyester/cotton blend fabrics so as to reduce energy consumption and raise production efficiency. The experimental part of the paper was very detailed, including the reaction process of 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Application In Synthesis of 6-Chlorobenzothiazol-2-ylamine)
6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9) belongs to thiazoles. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities.Application In Synthesis of 6-Chlorobenzothiazol-2-ylamineTheir presence in peptides or their ability to bind proteins, DNA and RNA has led to many synthetic studies and new applications.
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica