Oxidation of Caffeine by Diperiodatocuprate(III) with and without Ruthenium(III) in Alkaline Medium

Autor:	I. Mallikarjuna, M. K. Thriveni, S. Bellappa, T. Shivalingaswamy
Rok vydání:	2021
Předmět:	Reaction rate chemistry.chemical_compound Potassium hydroxide Aqueous solution chemistry Ionic strength chemistry.chemical_element Periodate Physical and Theoretical Chemistry Stoichiometry Ruthenium Catalysis Nuclear chemistry
Zdroj:	Russian Journal of Physical Chemistry A. 95:S44-S55
ISSN:	1531-863X 0036-0244
DOI:	10.1134/s0036024421140235
Popis:	The kinetic experiments on ruthenium(III) catalyzed oxidation of caffeine [CAF] with diperiodatocuprate(III) (DPC) [Cu(H2IO6)(H3IO6)]3− and [Ru(H2O)5(OH)]2+ was observed in an aqueous potassium hydroxide having an ionic strength of 0.8 mol dm−3 at 298 K, with and without the catalyst Ru(III). The reaction between caffeine and DPC in aqueous potassium hydroxide solution proceeds in the stoichiometric proportion of 1 : 4. Using a spot test, the oxidation products were separated and identified using LC-MS. The added periodate was seen to decrease the reaction rate. The impact of ionic strength, included resultant products, and the dielectric constant was investigated and activation parameters were evaluated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e5a1e11d7a13c374e0c5f2cce586d59f https://doi.org/10.1134/s0036024421140235 Zobrazit plný text záznamu Full text from SpringerLink