Matches in SemOpenAlex for { <https://semopenalex.org/work/W13777051> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W13777051 endingPage "173" @default.
- W13777051 startingPage "167" @default.
- W13777051 abstract "The long-term performance of 5 wt.% Pt/zeolite catalysts (HNaY with different degrees of ion exchange) modified with (−)cinchonidine was studied. The enantioselective hydrogenation of ethyl pyruvate to R(+)ethyl lactate was used as the model reaction. The Pt/zeolites are effective catalysts for long-term use, if the chiral modifier is added before each cycle of hydrogenation. The optimal ratio between the amount of catalyst and chiral modifier essentially depends on both the specific Pt surface area of the catalyst and the solvent used. It is found that the use of acetic acid as solvent results in a higher long-term performance than cyclohexane. This is due to the competitive adsorption between the chiral auxiliary and acetic acid on the Pt surface. Furthermore, the acidity of the solvent results in a weakening of the (−)cinchonidine/Pt interaction, which prevents an overloading of the Pt surface area with (−)cinchonidine or its decay products. This effect was determined by means of differential thermal analysis and elemental analysis. When cyclohexane is used as the solvent, the long-term performance is significantly improved by raising the carrier acidity." @default.
- W13777051 created "2016-06-24" @default.
- W13777051 creator A5003218828 @default.
- W13777051 creator A5030167649 @default.
- W13777051 creator A5053741901 @default.
- W13777051 creator A5058135429 @default.
- W13777051 creator A5067233091 @default.
- W13777051 date "2000-07-01" @default.
- W13777051 modified "2023-10-16" @default.
- W13777051 title "Enantioselective hydrogenation of ethyl pyruvate" @default.
- W13777051 cites W100384720 @default.
- W13777051 cites W1234070621 @default.
- W13777051 cites W1505815985 @default.
- W13777051 cites W1994448974 @default.
- W13777051 cites W2026134310 @default.
- W13777051 cites W2047671451 @default.
- W13777051 cites W2049024230 @default.
- W13777051 cites W2078796546 @default.
- W13777051 cites W39312990 @default.
- W13777051 doi "https://doi.org/10.1016/s0920-5861(00)00333-3" @default.
- W13777051 hasPublicationYear "2000" @default.
- W13777051 type Work @default.
- W13777051 sameAs 13777051 @default.
- W13777051 citedByCount "42" @default.
- W13777051 countsByYear W137770512013 @default.
- W13777051 countsByYear W137770512014 @default.
- W13777051 countsByYear W137770512015 @default.
- W13777051 countsByYear W137770512016 @default.
- W13777051 countsByYear W137770512017 @default.
- W13777051 countsByYear W137770512021 @default.
- W13777051 countsByYear W137770512023 @default.
- W13777051 crossrefType "journal-article" @default.
- W13777051 hasAuthorship W13777051A5003218828 @default.
- W13777051 hasAuthorship W13777051A5030167649 @default.
- W13777051 hasAuthorship W13777051A5053741901 @default.
- W13777051 hasAuthorship W13777051A5058135429 @default.
- W13777051 hasAuthorship W13777051A5067233091 @default.
- W13777051 hasConcept C146686406 @default.
- W13777051 hasConcept C150394285 @default.
- W13777051 hasConcept C161790260 @default.
- W13777051 hasConcept C178790620 @default.
- W13777051 hasConcept C179104552 @default.
- W13777051 hasConcept C185592680 @default.
- W13777051 hasConcept C2776673659 @default.
- W13777051 hasConcept C2777243832 @default.
- W13777051 hasConcept C2778237882 @default.
- W13777051 hasConcept C2779097540 @default.
- W13777051 hasConcept C2780471494 @default.
- W13777051 hasConceptScore W13777051C146686406 @default.
- W13777051 hasConceptScore W13777051C150394285 @default.
- W13777051 hasConceptScore W13777051C161790260 @default.
- W13777051 hasConceptScore W13777051C178790620 @default.
- W13777051 hasConceptScore W13777051C179104552 @default.
- W13777051 hasConceptScore W13777051C185592680 @default.
- W13777051 hasConceptScore W13777051C2776673659 @default.
- W13777051 hasConceptScore W13777051C2777243832 @default.
- W13777051 hasConceptScore W13777051C2778237882 @default.
- W13777051 hasConceptScore W13777051C2779097540 @default.
- W13777051 hasConceptScore W13777051C2780471494 @default.
- W13777051 hasIssue "3-4" @default.
- W13777051 hasLocation W137770511 @default.
- W13777051 hasOpenAccess W13777051 @default.
- W13777051 hasPrimaryLocation W137770511 @default.
- W13777051 hasRelatedWork W13777051 @default.
- W13777051 hasRelatedWork W2024484112 @default.
- W13777051 hasRelatedWork W2048546071 @default.
- W13777051 hasRelatedWork W2149404087 @default.
- W13777051 hasRelatedWork W2172788164 @default.
- W13777051 hasRelatedWork W2365297458 @default.
- W13777051 hasRelatedWork W2387247228 @default.
- W13777051 hasRelatedWork W2951992408 @default.
- W13777051 hasRelatedWork W2952151235 @default.
- W13777051 hasRelatedWork W3087522308 @default.
- W13777051 hasVolume "60" @default.
- W13777051 isParatext "false" @default.
- W13777051 isRetracted "false" @default.
- W13777051 magId "13777051" @default.
- W13777051 workType "article" @default.