DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kim, Yong-Hae | - |
dc.contributor.advisor | 김용해 | - |
dc.contributor.author | Kim, Yong-Il | - |
dc.contributor.author | 김용일 | - |
dc.date.accessioned | 2011-12-13T04:57:25Z | - |
dc.date.available | 2011-12-13T04:57:25Z | - |
dc.date.issued | 1988 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=66038&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/32501 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 화학과, 1988.2, [ vi, 54 p. ] | - |
dc.description.abstract | Treatment of N-(2-hydroxyphenyl) benzthioamides with superoxide anion in acetonitril resulted in the formation of 2-substituted benzoxazoles in excellent yields together potassium sulfate. The cyclodesulfurization of N-(2-hydroxyphenyl) benzthioamides appears to involve the formation of peroxysulfer -dioxide or -trioxide like the case of desulfurization of thioamide derivatives. In this cyclization, the combination of a neighbering group effect of a hydroxylate and the leaving group of $SO_NO^-$ (n=1 or 2) seems to play an important role. While, n-benzyl benzthioamide reacted with superoxide anion at 20$^\circ$C resulted in the formation of N-benzoyl benzamide. Benzyl methylene groups of thioamides were found to reacted with a peroxysulfur intermediate which is generated for o-nitrobenzenesulfonyl chloride adn superoxide to give the corresponding carbonyl compounds at 20$^\circ$C in THF Or $CH_3CN$. It was found that N-(2-mercaptophenyl) benzamides reated with $P_2S_5$ in pyridine to afford the 2-substituted benzothiazoles in excellent yields, where $P_2S_5$ appears to be catalyst. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.title | Oxidation of thioamide derivatives using superoxide anion and synthesis of benzothiazoles | - |
dc.title.alternative | 슈퍼옥사이드를 이용한 티오아미드 유도체의 산화반응 및 2-폐닐 벤조티오아졸 유도체의 합성 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 66038/325007 | - |
dc.description.department | 한국과학기술원 : 화학과, | - |
dc.identifier.uid | 000861074 | - |
dc.contributor.localauthor | Kim, Yong-Hae | - |
dc.contributor.localauthor | 김용해 | - |
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