Matches in SemOpenAlex for { <https://semopenalex.org/work/W2411161579> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W2411161579 endingPage "163" @default.
- W2411161579 startingPage "157" @default.
- W2411161579 abstract "Polarographic behavior of the N-O groups in 1-oxides, 4-oxides, and 1, 4-dioxides of quinoxaline, 2-methylquinoxaline, 2-phenylquinoxaline, and 2-quinoxalinecarboxylic acid is discussed. The reduction wave of quinoxaline ring showed reversibility, but that of the N-O groups was found to be irreversible. Except in 2-quinoxalinecarboxylic acid 1-oxide and 1, 4-dioxide, variation of pH did not show any effect on the wave height of the N-O reduction. However, the limiting current of the first reduction wave of 2-quinoxalinecarboxylic acid 1-oxide and 1, 4-dioxide decreased in the neutral solutions, but the total limiting current of the first and second waves remained constant. These behaviors of the N-O groups can be interpreted by considering that the rate of proton addition to the N-O groups is very fast. By the introduction of a carboxyl, phenyl, or methyl group into the quinoxaline ring, both reductions of quinoxaline ring and the N-O group took place at more positive potentials in the order of COOH>H>C6H5≈CH3. The phenyl and carboxyl groups produced a stronger effect on the reduction potentials of 1-N→O than those of 4-N→O, while a reverse effect was observed for the methyl groups. This order of facility of the N-O reduction can be correlated to the yield of synthetic N-oxidation in the reverse way. The carboxyl and phenyl derivatives of quinoxaline 1, 4-dioxides showed two reduction waves due to the corresponding N-O groups, which were assigned by comparing the half-wave potential and limiting current of their monoxide derivatives, and the reduction mechanisms for these derivatives were suggested." @default.
- W2411161579 created "2016-06-24" @default.
- W2411161579 creator A5027475366 @default.
- W2411161579 creator A5044871619 @default.
- W2411161579 creator A5047833613 @default.
- W2411161579 date "1973-01-01" @default.
- W2411161579 modified "2023-09-27" @default.
- W2411161579 title "Polarographic Studies of Quinoxaline and Its N-Oxide Derivatives. I" @default.
- W2411161579 doi "https://doi.org/10.1248/yakushi1947.93.2_157" @default.
- W2411161579 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/4737784" @default.
- W2411161579 hasPublicationYear "1973" @default.
- W2411161579 type Work @default.
- W2411161579 sameAs 2411161579 @default.
- W2411161579 citedByCount "5" @default.
- W2411161579 crossrefType "journal-article" @default.
- W2411161579 hasAuthorship W2411161579A5027475366 @default.
- W2411161579 hasAuthorship W2411161579A5044871619 @default.
- W2411161579 hasAuthorship W2411161579A5047833613 @default.
- W2411161579 hasBestOaLocation W24111615791 @default.
- W2411161579 hasConcept C127413603 @default.
- W2411161579 hasConcept C147789679 @default.
- W2411161579 hasConcept C155647269 @default.
- W2411161579 hasConcept C17525397 @default.
- W2411161579 hasConcept C178790620 @default.
- W2411161579 hasConcept C179104552 @default.
- W2411161579 hasConcept C185592680 @default.
- W2411161579 hasConcept C188198153 @default.
- W2411161579 hasConcept C188518856 @default.
- W2411161579 hasConcept C2779851234 @default.
- W2411161579 hasConcept C2780362310 @default.
- W2411161579 hasConcept C2780378348 @default.
- W2411161579 hasConcept C52859227 @default.
- W2411161579 hasConcept C57156300 @default.
- W2411161579 hasConcept C71240020 @default.
- W2411161579 hasConcept C78519656 @default.
- W2411161579 hasConceptScore W2411161579C127413603 @default.
- W2411161579 hasConceptScore W2411161579C147789679 @default.
- W2411161579 hasConceptScore W2411161579C155647269 @default.
- W2411161579 hasConceptScore W2411161579C17525397 @default.
- W2411161579 hasConceptScore W2411161579C178790620 @default.
- W2411161579 hasConceptScore W2411161579C179104552 @default.
- W2411161579 hasConceptScore W2411161579C185592680 @default.
- W2411161579 hasConceptScore W2411161579C188198153 @default.
- W2411161579 hasConceptScore W2411161579C188518856 @default.
- W2411161579 hasConceptScore W2411161579C2779851234 @default.
- W2411161579 hasConceptScore W2411161579C2780362310 @default.
- W2411161579 hasConceptScore W2411161579C2780378348 @default.
- W2411161579 hasConceptScore W2411161579C52859227 @default.
- W2411161579 hasConceptScore W2411161579C57156300 @default.
- W2411161579 hasConceptScore W2411161579C71240020 @default.
- W2411161579 hasConceptScore W2411161579C78519656 @default.
- W2411161579 hasIssue "2" @default.
- W2411161579 hasLocation W24111615791 @default.
- W2411161579 hasLocation W24111615792 @default.
- W2411161579 hasOpenAccess W2411161579 @default.
- W2411161579 hasPrimaryLocation W24111615791 @default.
- W2411161579 hasRelatedWork W1985395770 @default.
- W2411161579 hasRelatedWork W2004867342 @default.
- W2411161579 hasRelatedWork W2010771155 @default.
- W2411161579 hasRelatedWork W2021182848 @default.
- W2411161579 hasRelatedWork W2022496122 @default.
- W2411161579 hasRelatedWork W2051630195 @default.
- W2411161579 hasRelatedWork W2054856248 @default.
- W2411161579 hasRelatedWork W2076992150 @default.
- W2411161579 hasRelatedWork W2411161579 @default.
- W2411161579 hasRelatedWork W4251335188 @default.
- W2411161579 hasVolume "93" @default.
- W2411161579 isParatext "false" @default.
- W2411161579 isRetracted "false" @default.
- W2411161579 magId "2411161579" @default.
- W2411161579 workType "article" @default.