Synthesis of a chlorophyll-a derivative fused with an additional exo-five-membered ring and its optical properties
書誌事項
- 公開日
- 2019-08
- 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.2019.07.025
- 公開者
- Elsevier BV
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説明
Abstract A C20-free chlorophyll- a derivative with an additional exo -five-membered ring was successfully prepared using an ethylene linkage at the C3- and C5-positions. A bromination at the C20-position was requisite for the cyclization of a 1-hydroxyethyl or vinyl group at the C3-position of methyl bacteriopheophorbide- d or methyl pyropheophorbide- a , respectively. By comparing optical properties of the cyclized product with those of its 3-ethyl uncyclized analog in a diluted dichloromethane solution, it was shown that the cyclization shifted the Q x and B x absorption maxima to longer wavelengths and reduced the Stokes shift.
収録刊行物
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- Tetrahedron Letters
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Tetrahedron Letters 60 (33), 150934-, 2019-08
Elsevier BV
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詳細情報 詳細情報について
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- CRID
- 1361694367181812352
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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
