Matches in SemOpenAlex for { <https://semopenalex.org/work/W2078346794> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W2078346794 endingPage "1034" @default.
- W2078346794 startingPage "1023" @default.
- W2078346794 abstract "Caffeic acid (CA) can be considered as an important natural antioxidant. However, the low solubility and stability of CA in various solvent systems is a major limiting factor governing the overall application in the lipid industry, so the synthesis of methyl caffeate (MC)using CA and methanol is a feasible way to improve its lipophilicity. Here, the reaction conditions and kinetic parameters for the synthesis of MC using p-toluenesulfonic acid (PTSA) as a catalyst were firstly investigated, and the product was confirmed byliquid chromatography-mass spectrometry (LC-MS),Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), and melting point analysis. The highest yield of MC catalyzed by PTSA reached 84.0% under the optimum conditions as follows: molar ratio of methanol to CA of 20:1, reaction temperature of 65?C, mass ratio of catalyst to substrate of 8 %, and reaction time of 4 h. The esterification kinetics of CA and methanol is described by the pseudo-homogeneous second order reversible model, the relationship between temperature and the forward rate constant is k1 = exp (358.7 - 2111/T), and the activation energy is 17.5 kJ mol-1. These results indicated that the PTSA possesses high catalytic activity in the synthesis of MC, which is an efficient catalyst suitable for MC production in the chemical industry." @default.
- W2078346794 created "2016-06-24" @default.
- W2078346794 creator A5011721829 @default.
- W2078346794 creator A5049178422 @default.
- W2078346794 creator A5052125936 @default.
- W2078346794 creator A5055964799 @default.
- W2078346794 creator A5059428661 @default.
- W2078346794 date "2013-01-01" @default.
- W2078346794 modified "2023-10-16" @default.
- W2078346794 title "A study of esterification of caffeic acid with methanol using p-toluenesulfonic acid as a catalyst" @default.
- W2078346794 doi "https://doi.org/10.2298/jsc120802101w" @default.
- W2078346794 hasPublicationYear "2013" @default.
- W2078346794 type Work @default.
- W2078346794 sameAs 2078346794 @default.
- W2078346794 citedByCount "23" @default.
- W2078346794 countsByYear W20783467942013 @default.
- W2078346794 countsByYear W20783467942014 @default.
- W2078346794 countsByYear W20783467942015 @default.
- W2078346794 countsByYear W20783467942017 @default.
- W2078346794 countsByYear W20783467942018 @default.
- W2078346794 countsByYear W20783467942019 @default.
- W2078346794 countsByYear W20783467942020 @default.
- W2078346794 countsByYear W20783467942021 @default.
- W2078346794 countsByYear W20783467942022 @default.
- W2078346794 countsByYear W20783467942023 @default.
- W2078346794 crossrefType "journal-article" @default.
- W2078346794 hasAuthorship W2078346794A5011721829 @default.
- W2078346794 hasAuthorship W2078346794A5049178422 @default.
- W2078346794 hasAuthorship W2078346794A5052125936 @default.
- W2078346794 hasAuthorship W2078346794A5055964799 @default.
- W2078346794 hasAuthorship W2078346794A5059428661 @default.
- W2078346794 hasBestOaLocation W20783467941 @default.
- W2078346794 hasConcept C127413603 @default.
- W2078346794 hasConcept C134121241 @default.
- W2078346794 hasConcept C13530604 @default.
- W2078346794 hasConcept C13965031 @default.
- W2078346794 hasConcept C160892712 @default.
- W2078346794 hasConcept C161790260 @default.
- W2078346794 hasConcept C162356407 @default.
- W2078346794 hasConcept C178790620 @default.
- W2078346794 hasConcept C185592680 @default.
- W2078346794 hasConcept C191897082 @default.
- W2078346794 hasConcept C192562407 @default.
- W2078346794 hasConcept C2778004101 @default.
- W2078346794 hasConcept C2778224086 @default.
- W2078346794 hasConcept C2778341971 @default.
- W2078346794 hasConcept C2779607525 @default.
- W2078346794 hasConcept C2780471494 @default.
- W2078346794 hasConcept C42360764 @default.
- W2078346794 hasConcept C43617362 @default.
- W2078346794 hasConceptScore W2078346794C127413603 @default.
- W2078346794 hasConceptScore W2078346794C134121241 @default.
- W2078346794 hasConceptScore W2078346794C13530604 @default.
- W2078346794 hasConceptScore W2078346794C13965031 @default.
- W2078346794 hasConceptScore W2078346794C160892712 @default.
- W2078346794 hasConceptScore W2078346794C161790260 @default.
- W2078346794 hasConceptScore W2078346794C162356407 @default.
- W2078346794 hasConceptScore W2078346794C178790620 @default.
- W2078346794 hasConceptScore W2078346794C185592680 @default.
- W2078346794 hasConceptScore W2078346794C191897082 @default.
- W2078346794 hasConceptScore W2078346794C192562407 @default.
- W2078346794 hasConceptScore W2078346794C2778004101 @default.
- W2078346794 hasConceptScore W2078346794C2778224086 @default.
- W2078346794 hasConceptScore W2078346794C2778341971 @default.
- W2078346794 hasConceptScore W2078346794C2779607525 @default.
- W2078346794 hasConceptScore W2078346794C2780471494 @default.
- W2078346794 hasConceptScore W2078346794C42360764 @default.
- W2078346794 hasConceptScore W2078346794C43617362 @default.
- W2078346794 hasIssue "7" @default.
- W2078346794 hasLocation W20783467941 @default.
- W2078346794 hasOpenAccess W2078346794 @default.
- W2078346794 hasPrimaryLocation W20783467941 @default.
- W2078346794 hasRelatedWork W1964876920 @default.
- W2078346794 hasRelatedWork W2012563490 @default.
- W2078346794 hasRelatedWork W2025360090 @default.
- W2078346794 hasRelatedWork W2074200605 @default.
- W2078346794 hasRelatedWork W2126904341 @default.
- W2078346794 hasRelatedWork W2268862562 @default.
- W2078346794 hasRelatedWork W2354614562 @default.
- W2078346794 hasRelatedWork W2384589881 @default.
- W2078346794 hasRelatedWork W3187272280 @default.
- W2078346794 hasRelatedWork W4310447761 @default.
- W2078346794 hasVolume "78" @default.
- W2078346794 isParatext "false" @default.
- W2078346794 isRetracted "false" @default.
- W2078346794 magId "2078346794" @default.
- W2078346794 workType "article" @default.