A single crystal of organic nonlinear optical material 3-aminophenol perchlorate (3-AMP) was successfully grown by the slow evaporation solution method. Single-crystal X-ray diffractrometer was utilized to measure unit cell parameters and to confirm lattice parameter. 3-aminophenol perchlorate belongs to monoclinic space group P21. The optical transparency window in the UV–vis-NIR region is fou...

1. A stable, more highly purified, preparation of UDP-glucuronyltransferase was obtained than previously reported. 2. Enzyme activity towards o-aminophenyl and p-nitrophenyl was increased 43- and 46-fold respectively. 3. The final preparation contains only three staining polypeptide bands visible after sodium dodecyl sulphate/polyacrylamide-gel electrophoresis. 4. The only known major accompany...

The capillary electromigration method is an important analytical technique known for its simplicity, sensitivity, and selectivity. We have investigated electrophoretically mediated microanalysis (EMMA) in plug-plug and continuous formats for the determination of phenolic compounds. The azocoupling reactions of phenol, 3-aminophenol, and resorcinol with 4nitrophenyldiazonium fluoroborate were ca...

Maleic anhydride was reacted with p-aminophenol and p-toluidine in the presence of di-phosphorus pentoxide (P₂O₅) as a catalyst to produce two compounds: N-(4-hydroxy-phenyl)maleimide (I) and N-(4-methylphenyl)maleimide (II). The new azo compounds I(a-c) and II(a-c) were prepared by the reaction of I and II with three different aromatic amines, namely aniline, p-aminophenol and p-toluidine. The...

The quinimine form of p-aminophenol inhibits the oxygen uptake of tissue suspensions and in very small concentrations inhibits specifically the oxidation of hypoxanthine and xanthine to uric acid by the xanthine oxidase of liver (1). Closely related compounds such as o-aminophenol, p-phenylenediamine, and quinone, although they inhibit to different degrees the oxygen uptake of tissues, have no ...

The oxidation of the o-aminophenols, 2-amino-1-fluorenol, 3hydroxy-4-aminobiphenyl, and of o-aminophenol itself by cytochrome c and cytochrome oxidase in vitro has been shown to yield colored oxidation products with characteristic visible absorption spectra (2). The present paper is concerned with the identification of these products by chemical synthesis. The oxidation products of 3-hydroxy-4-...

This work reports the reduction of 4-nitrophenol to 4-aminophenol using UiO-66(Zr) as a bifunctional photocatalyst and hydrogenation catalyst methanol hydrogen source.

In the first of these communications Goebel and Avery (1) described the chemical methods by means of ‘which the p-aminophenol ghxosides were synthesized from glucose and galactose and the dia&aed substances bound to protein. The two newly synthesized sugar-proteins d&r from one another chemically only in specific rotation and molecular co~tion. In the second paper, Avery and Goebel(2) reported ...

The formation of an unexpected heterocyclic scaffold, a benzoxazole, in a three-component reaction between a ketone, isocyanide, and 2-aminophenol was encountered. This reaction involved a benzo[b][1,4]oxazine intermediate resulting from intramolecular attack of the aminophenol hydroxyl group on the nitrilium ion. Unlike previous literature examples, the trapped nitrilium benzo[b][1,4]oxazine c...