On September 7, 2018, Stahl, Shannon S.; Gerken, James B.; Anson, Colin W.; Suh, Sung-Eun; Stamoulis, Alexiouis G. published a patent.Product Details of 41819-13-0 The title of the patent was Preparation of hydroquinones, anthraquinones and related compounds as high-and low-potential, water-soluble, robust quinones. And the patent contained the following:
Preparation of substituted hydroquinones, 1,4-quinones, catechols, 1,2-quinones, anthraquinones, and anthrahydroquinones od the exemplary formula I are disclosed herein. Compounds I wherein one or more of R1, R2, R3 and R4 include a sulfonate moiety, a sulfonimide moiety, or a phosphonate moiety, and any of R1, R2, R3 and R4 that do not include one of these moieties include an alkyl, a cycloalkyl, a thioether, a sulfoxide, a sulfone, a haloalkyl, a halogen, a nitrile, an imide, a pyrazole, or combinations thereof, are claimed. The substituted hydroquinones and catechols have the formula: while the substituted 1,4-quinones or 1,2-have the corresponding oxidized structure (1,4- benzoquinones and 1,2-benzoquinones). The substituted anthraquinones have the formula: while the substituted anthrahydroquinones have the corresponding reduced structure. Accordingly, they can be used as redox mediators in emerging technologies, such as in mediated fuel cells or organic-mediator flow batteries. The experimental process involved the reaction of 3,6-Dibromobenzene-1,2,4,5-tetracarboxylic acid(cas: 41819-13-0).Product Details of 41819-13-0
The Article related to hydroquinone anthraquinone preparation redox potential electrolyte fuel cell technol, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Phenols, Thiophenols, and Derivatives Including Phenol and Thiophenol Ethers and Esters and other aspects.Product Details of 41819-13-0
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary