Synthesis and Characterization of pyrazolo[1,5-a] Pyrimidine Derivatives
碩士 === 國立臺灣科技大學 === 高分子工程系 === 92 === ABSTRACT In this study, 4-arylazo-3,5-diaminopyrazole compounds have been synthesized by reaction of arylazomalononitrile with hydrazine hydrate. The symmetrical and asymmetrical 3,6-diarylazo-2,5,7- triaminopyrazolo[1,5-a]pyrimidine heterocyclic dis...
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2004
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| Online Access: | http://ndltd.ncl.edu.tw/handle/73267789211679603689 |
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ndltd-TW-092NTUST5660672015-10-13T13:28:05Z http://ndltd.ncl.edu.tw/handle/73267789211679603689 Synthesis and Characterization of pyrazolo[1,5-a] Pyrimidine Derivatives 吡唑[1,5-a]嘧啶系列衍生物之合成及性質探討 Tsai Pi Chen 蔡弼丞 碩士 國立臺灣科技大學 高分子工程系 92 ABSTRACT In this study, 4-arylazo-3,5-diaminopyrazole compounds have been synthesized by reaction of arylazomalononitrile with hydrazine hydrate. The symmetrical and asymmetrical 3,6-diarylazo-2,5,7- triaminopyrazolo[1,5-a]pyrimidine heterocyclic disazo dyes have been prepared by the cyclization of 4-arylazo-3,5-diaminopyrazoles with different arylazomalononitriles. The solvatochromic behaviour of these disazo dyes in various solvents was evaluated. The structures of these compounds were determined by spectrometry（UV、FT-IR、1H-NMR）and element analysis（EA）. Wang Ing Jing 王英靖 2004 學位論文 ; thesis 72 zh-TW |
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碩士 === 國立臺灣科技大學 === 高分子工程系 === 92 === ABSTRACT
In this study, 4-arylazo-3,5-diaminopyrazole compounds have been synthesized by reaction of arylazomalononitrile with hydrazine hydrate. The symmetrical and asymmetrical 3,6-diarylazo-2,5,7- triaminopyrazolo[1,5-a]pyrimidine heterocyclic disazo dyes have been prepared by the cyclization of 4-arylazo-3,5-diaminopyrazoles with different arylazomalononitriles. The solvatochromic behaviour of these disazo dyes in various solvents was evaluated. The structures of these compounds were determined by spectrometry（UV、FT-IR、1H-NMR）and element analysis（EA）.
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| author2 |
Wang Ing Jing |
| author_facet |
Wang Ing Jing Tsai Pi Chen 蔡弼丞 |
| author |
Tsai Pi Chen 蔡弼丞 |
| spellingShingle |
Tsai Pi Chen 蔡弼丞 Synthesis and Characterization of pyrazolo[1,5-a] Pyrimidine Derivatives |
| author_sort |
Tsai Pi Chen |
| title |
Synthesis and Characterization of pyrazolo[1,5-a] Pyrimidine Derivatives |
| title_short |
Synthesis and Characterization of pyrazolo[1,5-a] Pyrimidine Derivatives |
| title_full |
Synthesis and Characterization of pyrazolo[1,5-a] Pyrimidine Derivatives |
| title_fullStr |
Synthesis and Characterization of pyrazolo[1,5-a] Pyrimidine Derivatives |
| title_full_unstemmed |
Synthesis and Characterization of pyrazolo[1,5-a] Pyrimidine Derivatives |
| title_sort |
synthesis and characterization of pyrazolo[1,5-a] pyrimidine derivatives |
| publishDate |
2004 |
| url |
http://ndltd.ncl.edu.tw/handle/73267789211679603689 |
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