Synthesis of N-, S-, O-substituted quinone dyes and their dyeability on polyester fibers

A method for dyeing polyester fibres with quinone derivatives and evaluation of their antioxidant activity

“…In addition, it is necessary that the range of novel biological active dyes is increased for the textile industry. In our previous study of new naphthoquinone derivatives, we have found that the synthesized S,S-and S,O-substituted 1,4-naphthoquinones exhibited good antioxidant activity [9] and strong color shades [10]. These encouraging results prompted us to extend the study on other S,S-substituted-1,4-naphthoquinones derivatives.…”

“…In this work, the properties of dyeing polyester fibers and the coloristic properties of the dyed materials were investigated. The synthesis of N,O-, N,S-substituted-1,4-naphthoquinone compounds and their application in dyeing polyester fabrics have been recently studied [10]. However, there is no published information regarding dyeing polyester fiber with S,Sdisubstituted-1,4-naphthoquinone dyes.…”

Recent Advances in the Domino Annulation Reaction of Quinone Imines

“…Quinones and their derivatives have attracted increasing attention in organic synthesis because of their wide applications in medicine, pesticides, dyes, energy storage, and various fine chemical products [ 27 , 28 , 29 , 30 , 31 ]. Quinone imines, as highly reactive electrophiles containing multiple active sites, can be used in aromatic functionalization, amination, and cyclization reactions, providing efficient tools and methods for synthetic chemistry [ 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ].…”

Influence of Titanium Species on the Ordered Mesoporous Structure of V‐Zr Catalysts for Naphthalene Oxidation with Hydrogen Peroxide

“…In particular, mesoporous metal oxides prepared by a modified EISA method were easily obtained, where some cationic active species can be uniformly incorporated into the framework to form the specific catalysts . The product 1,4‐naphthoquinone, which was widely used in various fields such as medicine, biology, and perfumery, can be obtained by selective oxidation of naphthalene with hydrogen peroxide over various mesoporous metal oxides. However, since liquid‐phase oxidation of naphthalene was a continuous reaction, 1,4‐naphthoquinone as an intermediate product was easily further oxidized, where some chemicals with low values would be formed .…”