DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Lee, Hee-Yoon | - |
dc.contributor.advisor | 이희윤 | - |
dc.contributor.author | Ryoo, Su-Young | - |
dc.contributor.author | 유수영 | - |
dc.date.accessioned | 2011-12-13T04:48:13Z | - |
dc.date.available | 2011-12-13T04:48:13Z | - |
dc.date.issued | 2001 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=165984&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/31887 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 화학과, 2001.2, [ iii, 47 p. ] | - |
dc.description.abstract | With transition metals, Pd, Pt, Co, loaded on the mesoporous materials, organic reactions (hydrogenation, hydrogenolysis, Heck reaction, and Pauson-Khand reaction) were investigated and new selectivity, compared with the reaction of other catalyst, was found. Pd@MCM48 selectively hydrogenolyzed benzyl ether of molecules including double bonds while other Palladium catalysts have no selectivity between hydrogenation and hydrogenolysis. And benzyl bromide makes hydrogenolysis to be 3 times faster, but it has no effect on hydrogenation. Pd@MCM48 hydrogenolyzed completely 1° benzyl ether but the hydrogenolysis of 2° and 3° benzyl ether wasn’t observed in the mixture of 1°, 2° and 3° benzyl ethers. Hydrogenation of the olefin including benzyl ether with Pt/CMK-1 gave no debenzylated product until the hydrogenation finished, while the hydrogenation with Pt/C gave 10% debenzylated product. The relative rates of hydrogenation with Pt/CMK-1 of di- and tri-substituted olefins were about two orders of magnitude slower than mono-substituted olefin. In the case of Pt/C, the relative rates of di- and tri-substituted olefins were about 3 times slower than mono-substituted olefin. The heterogeneous Pauson-Khand reaction with $Co_2(CO)_8$/MCM48 and $Co_2(CO)_8$/CMK-1 gave 20% yield and 26% yield. In according to the mechanism of Pauson-Khand reaction only one carbonyl group is participated. But we observed that only 0.35 equivalent of $Co_2(CO)_8$ in DME under a Ar atm gave 70% yield. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Heck reaction | - |
dc.subject | Pt/CMK-1 | - |
dc.subject | Pd@MCM48 | - |
dc.subject | Mesoporous | - |
dc.subject | Pauson-Khand reaction | - |
dc.subject | 포손-칸 반응 | - |
dc.subject | 수소화반응 | - |
dc.subject | 유기반응 | - |
dc.subject | 촉매 | - |
dc.subject | 메조포러스 | - |
dc.title | Studies on the organic reactions using the catalysts supported mesoporous materials | - |
dc.title.alternative | 메조포러스 물질에 담지된 촉매를 이용한 유기반응에 대한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 165984/325007 | - |
dc.description.department | 한국과학기술원 : 화학과, | - |
dc.identifier.uid | 000993336 | - |
dc.contributor.localauthor | Lee, Hee-Yoon | - |
dc.contributor.localauthor | 이희윤 | - |
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