The reaction of the hydroxy radical with thymidine and poly-hydroxy benzenes; i.e., catechol, resorcinol, hydroquinone, and pyrogallol, was studied by ESR spin trapping combined with the UV-A photolysis of hydrogen peroxide. The obtained relative reaction rates reasonably agreed with those previously obtained by pulse radiolysis. Electron distribution in the HOMO obtained by DFT calculations al...

A mixture of Ti(IV) and 4-(2-pyridylazo) resorcinol was found to be useful in the spectrophotometric determination of trace amounts of hydrogen peroxide. The absorbance of the complex formed at 508 nm was proportional to the concentration ofhydrogen peroxide added. The reagent was applied to the assay ofglucose through coupling with glucose oxidase which produces HP2' This method of glucose det...

espanolEn este trabajo se valora la eficiencia de una resina pino modificada biodegradable (A-30), al utilizarla como compatibilizante o acoplante para sustituir resorcinol (que es toxico y no biodegradable), comparando las propiedades mecanicas (contra formulaciones preparadas usando el sistema resorcinol-hexametilentetramina (R-HMT) en: a) polimeros elastomericos reticulados estireno-butadien...

Allergic contact dermatitis caused by phenylethyl resorcinol, a skin-lightening agent contained in a sunscreen María-Antonia Pastor-Nieto1, Paloma Sánchez-Pedreño2, Teresa Martínez-Menchón2, Virginia Melgar-Molero1, Francisco Alcántara-Nicolás1 and Pablo de la Cruz-Murie3 1Dermatology Department, University Hospital of Guadalajara, 19002 Guadalajara, Spain, 2Dermatology Department, University C...

A new type of [Bi6O6(OH)3](NO3)3·1.5H2O sheets photocatalyst was synthesized via a hydrothermal route. The photocatalytic properties were characterized by SEM, TEM, XRD and UV spectroscopy. It exhibited slightly better photocatalytic activity on phenol degradation than that of classic TiO2 P25 under UV illumination. Hydroquinone, catechol, resorcinol, and benzoquinone were identified as photode...

Eleven resorcinarene cavitands bearing either one, two or four (3-R-1-imidazolylium)-methyl substituents (R = (n)Bu, Ph, Mes, (i)Pr(2)C(6)H(3)) anchored at resorcinolic "ortho" positions have been synthesised from the appropriate bromomethylated precursor. Combining the imidazolium salts with palladium acetate and Cs(2)CO(3) gave active Suzuki-Miyaura cross coupling catalysts. The highest activ...