[2+2] Photodimerization of bispyridylethylenes by a controlled shift of the protonation equilibrium
書誌事項
- 公開日
- 2013-07
- 資源種別
- journal article
- 権利情報
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- https://www.elsevier.com/tdm/userlicense/1.0/
- https://www.elsevier.com/legal/tdmrep-license
- DOI
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- 10.1016/j.tetlet.2013.05.075
- 公開者
- Elsevier BV
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説明
Abstract Irradiation of trans-4,4′-bispyridylethylene in the presence of 1 equiv of concd HCl produced a syn dimer with high selectivity, whereas irradiation in the presence of more than 2 equiv of concd HCl or in the absence of HCl gave a mixture of dimers and by-products with much lower selectivity. This indicated that a suitable amount of acid served as a catalyst for the [2+2] photodimerization of BPEs through cation–π interactions between the pyridinium and pyridine rings.
収録刊行物
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- Tetrahedron Letters
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Tetrahedron Letters 54 (30), 3997-4000, 2013-07
Elsevier BV
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詳細情報 詳細情報について
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- CRID
- 1360565166131656064
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- ISSN
- 00404039
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- 資料種別
- journal article
-
- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
