Matches in SemOpenAlex for { <https://semopenalex.org/work/W2126342185> ?p ?o ?g. }
Showing items 1 to 95 of
95
with 100 items per page.
- W2126342185 endingPage "379" @default.
- W2126342185 startingPage "355" @default.
- W2126342185 abstract "Abstract The oxidative coupling of 2,6-dimethylphenol (DMP) by copper complexes of 4-(N,N)-dimethylamino)pyridine (DMAP) has been studied. Catalytic experiments were carried out in which the DMAP-to-copper ratio and the amount and nature of the copper counter ions were varied. Supporting UV and EPR experiments were performed, and it was concluded that both dinuclear and mononuclear complexes are catalytically active, the mononuclear species being the more active. In solution both species are in equilibrium with one another. The mono/di ratio can be increased by addition of extra DMAP ligands. An excess of coordinating counter-ions increases the amount of dinuclear species. However, a few coordinating counterions are inevitable, and the catalytically most active species was found to be ‘Cu(DMAP)4Cl(OH)’, the role of Cl− probably being that of a bridging counter-ion promoting the formation of dinuclear Cu(I) complexes for the reoxidation step. The DMAP ligands are coordinated to Cu(II) through the pyridine N-atoms, as was determined by X-ray analysis. The Cu(II)DMAP complexes are catalytically active even without initial hydroxide addition. It is believed that the strongly basic DMAP ligands produce some hydroxide from traces of water present in the reaction medium. The species ‘Cu(DMAP)4Cl(OH)’ proved to be able to produce relatively high molecular weight polyphenylene oxide (PPO) in short time and with good specificity ( >95%)." @default.
- W2126342185 created "2016-06-24" @default.
- W2126342185 creator A5012555611 @default.
- W2126342185 creator A5015264123 @default.
- W2126342185 creator A5022229528 @default.
- W2126342185 creator A5089021810 @default.
- W2126342185 date "1986-03-01" @default.
- W2126342185 modified "2023-09-24" @default.
- W2126342185 title "Structure of copper 4-(n,n- dimethylamino)pyridine complexes and their catalytic activity in the oxidative coupling of 2,6-dimethylphenol" @default.
- W2126342185 cites W1886741303 @default.
- W2126342185 cites W2013537520 @default.
- W2126342185 cites W2030388295 @default.
- W2126342185 cites W2036003727 @default.
- W2126342185 cites W2048645097 @default.
- W2126342185 cites W2051918396 @default.
- W2126342185 cites W2064109038 @default.
- W2126342185 cites W2072491169 @default.
- W2126342185 cites W2075710902 @default.
- W2126342185 cites W2094017478 @default.
- W2126342185 cites W2094640088 @default.
- W2126342185 cites W2095454493 @default.
- W2126342185 cites W2114578503 @default.
- W2126342185 cites W2119374117 @default.
- W2126342185 cites W2126687016 @default.
- W2126342185 cites W2130906399 @default.
- W2126342185 cites W2133823493 @default.
- W2126342185 cites W2135030345 @default.
- W2126342185 cites W2147902141 @default.
- W2126342185 cites W2167963249 @default.
- W2126342185 cites W2949510879 @default.
- W2126342185 cites W94636301 @default.
- W2126342185 doi "https://doi.org/10.1016/0304-5102(86)87014-6" @default.
- W2126342185 hasPublicationYear "1986" @default.
- W2126342185 type Work @default.
- W2126342185 sameAs 2126342185 @default.
- W2126342185 citedByCount "26" @default.
- W2126342185 countsByYear W21263421852012 @default.
- W2126342185 countsByYear W21263421852018 @default.
- W2126342185 crossrefType "journal-article" @default.
- W2126342185 hasAuthorship W2126342185A5012555611 @default.
- W2126342185 hasAuthorship W2126342185A5015264123 @default.
- W2126342185 hasAuthorship W2126342185A5022229528 @default.
- W2126342185 hasAuthorship W2126342185A5089021810 @default.
- W2126342185 hasBestOaLocation W21263421852 @default.
- W2126342185 hasConcept C131584629 @default.
- W2126342185 hasConcept C155647269 @default.
- W2126342185 hasConcept C161790260 @default.
- W2126342185 hasConcept C178790620 @default.
- W2126342185 hasConcept C185592680 @default.
- W2126342185 hasConcept C188027245 @default.
- W2126342185 hasConcept C191897082 @default.
- W2126342185 hasConcept C192562407 @default.
- W2126342185 hasConcept C2779485729 @default.
- W2126342185 hasConcept C544778455 @default.
- W2126342185 hasConcept C55493867 @default.
- W2126342185 hasConcept C57600042 @default.
- W2126342185 hasConcept C75473681 @default.
- W2126342185 hasConcept C83155894 @default.
- W2126342185 hasConceptScore W2126342185C131584629 @default.
- W2126342185 hasConceptScore W2126342185C155647269 @default.
- W2126342185 hasConceptScore W2126342185C161790260 @default.
- W2126342185 hasConceptScore W2126342185C178790620 @default.
- W2126342185 hasConceptScore W2126342185C185592680 @default.
- W2126342185 hasConceptScore W2126342185C188027245 @default.
- W2126342185 hasConceptScore W2126342185C191897082 @default.
- W2126342185 hasConceptScore W2126342185C192562407 @default.
- W2126342185 hasConceptScore W2126342185C2779485729 @default.
- W2126342185 hasConceptScore W2126342185C544778455 @default.
- W2126342185 hasConceptScore W2126342185C55493867 @default.
- W2126342185 hasConceptScore W2126342185C57600042 @default.
- W2126342185 hasConceptScore W2126342185C75473681 @default.
- W2126342185 hasConceptScore W2126342185C83155894 @default.
- W2126342185 hasIssue "3" @default.
- W2126342185 hasLocation W21263421851 @default.
- W2126342185 hasLocation W21263421852 @default.
- W2126342185 hasLocation W21263421853 @default.
- W2126342185 hasOpenAccess W2126342185 @default.
- W2126342185 hasPrimaryLocation W21263421851 @default.
- W2126342185 hasRelatedWork W1974097689 @default.
- W2126342185 hasRelatedWork W2006008348 @default.
- W2126342185 hasRelatedWork W2041048952 @default.
- W2126342185 hasRelatedWork W2312996164 @default.
- W2126342185 hasRelatedWork W2367035273 @default.
- W2126342185 hasRelatedWork W2397063310 @default.
- W2126342185 hasRelatedWork W2533405060 @default.
- W2126342185 hasRelatedWork W2734299916 @default.
- W2126342185 hasRelatedWork W2949173546 @default.
- W2126342185 hasRelatedWork W2951412127 @default.
- W2126342185 hasVolume "34" @default.
- W2126342185 isParatext "false" @default.
- W2126342185 isRetracted "false" @default.
- W2126342185 magId "2126342185" @default.
- W2126342185 workType "article" @default.