DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Shim, Sang-Chul | - |
dc.contributor.advisor | 심상철 | - |
dc.contributor.author | Cho, Tae-Heung | - |
dc.contributor.author | 조태흥 | - |
dc.date.accessioned | 2011-12-13T04:56:32Z | - |
dc.date.available | 2011-12-13T04:56:32Z | - |
dc.date.issued | 1985 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=64406&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/32440 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 화학과, 1985.2, [ iv, 66 p. ] | - |
dc.description.abstract | The photoreaction of 5,7-dimethoxycoumarin (DMC) with adenosine, has been studied. The photoreaction was carried out in a dry film state formed by quick evaporation of methanol solvent the DMC and adenosine solution. Two products among photoadducts were isolated by Lobar RP-8 column chromatography and preparative HPLC. The main products of photoreaction have been characterized by spectroscopic methods using UV, $^1H$ NMR, IR and mass spectrometry. Two photoadducts were not photosplitted by short wavelength UV light, and $λ_max$ at 260 nm which is the same as that of adenosine. It indicates that adenosine chromophore remains unchanged, strongly suggesting that the photoadducts are not a $C_4$-cycloaddition product. Photobinding of DMC occurs to adenosine through covalent bond formation between the pyrone ring of DMC and the sugar ring moiety of adenosine. A reasonable mechanism may be a radical intermediate. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.title | Photoreaction of 5,7-dimethoxycoumarin with adenosine | - |
dc.title.alternative | 5,7-디메톡시쿠마린과 아데노신과의 광화학반응에 관한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 64406/325007 | - |
dc.description.department | 한국과학기술원 : 화학과, | - |
dc.identifier.uid | 000831395 | - |
dc.contributor.localauthor | Shim, Sang-Chul | - |
dc.contributor.localauthor | 심상철 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.