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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 901 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 889 | - |
dc.citation.title | RESEARCH ON CHEMICAL INTERMEDIATES | - |
dc.citation.volume | 30 | - |
dc.contributor.author | Jo, Donghyun | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.contributor.author | Lee, Kyung Hee | - |
dc.date.accessioned | 2023-12-22T11:07:32Z | - |
dc.date.available | 2023-12-22T11:07:32Z | - |
dc.date.created | 2015-07-24 | - |
dc.date.issued | 2004 | - |
dc.description.abstract | Enantio-differentiating hydrogenation of methyl acetoacetate was performed over the supported nickel catalysts modified by the solution of (R,R)-tartaric acid or (S)-malic acid and NaBr. The reduction temperature of supported nickel was the most important factor determining the enantio-selectivity of catalysts. The reduction temperature changed the nickel dispersion, by which the quantity and coverage of modifier adsorption were varied. The enantio-selectivity of modifiers both (R,R)-tartaric acid and (S)-malic acid were compared at various reduction temperatures. (R,R)tartaric acid with two hydroxyl groups in a molecule showed an optimum coverage on the nickel surface that gave the maximum ee value. The maximum ee value was 72% at the reduction temperature of 973 K. In contrast, (S)-malic acid with one hydroxyl group in a molecule showed a monotonous decrease in ee and decreasing amounts of adsorbed modifier with increasing reduction temperatures | - |
dc.identifier.bibliographicCitation | RESEARCH ON CHEMICAL INTERMEDIATES, v.30, no.9, pp.889 - 901 | - |
dc.identifier.doi | 10.1163/1568567042420730 | - |
dc.identifier.issn | 0922-6168 | - |
dc.identifier.scopusid | 2-s2.0-10944222679 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12516 | - |
dc.identifier.url | http://link.springer.com/article/10.1163%2F1568567042420730 | - |
dc.identifier.wosid | 000226052400007 | - |
dc.language | 영어 | - |
dc.publisher | SPRINGER | - |
dc.title.alternative | Enantio-differentiating hydrogenation of methyl acetoacetate over modified nickel catalysts: effects of nickel dispersion on the enantio-selectivity of catalysts | - |
dc.title | Enantio-differentiating hydrogenation of methyl acetoacetate over modified nickel catalysts: effects of nickel dispersion on the enantio-selectivity of catalysts | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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