| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2016-03-25 |
| タイトル |
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タイトル |
Mechanistic aspect of ring transformations in the reaction of 5-nitro-4-pyrimidinone with acetophenone derivatives and cycloalkanones depending on the electron density/ring size of the ketone |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Nishiwaki, Nagatoshi
Sugimoto, Ryuichi
Saigo, Kazuhiko
Kobiro, Kazuya
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
3-Methyl-5-nitro-4-pyrimidinone undergoes two kinds of nucleophilic type ring transformations upon treatment with cycloalkanones in the presence of ammonium acetate, which affords 4,5-disubstituted pyrimidines and 5,6-disubstituted 3-nitro-2-pyridones. In order to improve the synthetic utility of this reaction, it is necessary to control the regioselectivity of these ring transformations. In the present work, we performed DFT calculation to realize the selectivity of two ring transformation products. In cases of adduct intermediates derived from cyclohexanone and cyclooctanone, the 2-attack proceeds preferably to give condensed pyrimidines. On the other hand, the adduct intermediate derived from cycloheptanone undergoes the 4-attack predominantly to afford condensed nitropyridone. |
| 書誌情報 |
Tetrahedron Letters
巻 54,
号 8,
p. 956-959,
発行日 2013
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| DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.tetlet.2012.12.020 |
| 著者版フラグ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 出版者 |
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出版者 |
Elsevier Ltd. |
27-23.pdf (135.8 kB)
