Annulation of 2H-Pyran onto 1-Oxa- or 1-Azacyclohexane-2,4-diones and Their Analogues via Sequential Condensation with α-Substituted Enals and 6π-Electrocyclization
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<jats:title>Abstract</jats:title> <jats:p>2H-Pyrans are constructed on a 1-oxa- or 1-azacyclohexane-2,4-dione core via Knoevenagel condensation with enals followed by 6π-electrocyclization, which are readily catalyzed with ethylenediammonium diacetate. This formal [3 + 3] strategy constitutes C–O and C–C bond making and the diastereomer formation is circumvented using 6,6-disubstitution with the same aryl group in the 1-oxacyclohexane-2,4-diones. This facile methodology significantly advances the access to polysubstituted bicyclic 2H-pyrans with a versatile substrate choice and improved stability of the product.</jats:p>
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 86 (7), 870-879, 2013-07
Tokyo : Chemical Society of Japan
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詳細情報 詳細情報について
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- CRID
- 1520010380783891968
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- NII論文ID
- 10031183252
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- NII書誌ID
- AA00580132
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- ISSN
- 00092673
- 13480634
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- NDL書誌ID
- 024672052
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- 本文言語コード
- en
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- NDL 雑誌分類
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- ZP1(科学技術--化学・化学工業)
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- データソース種別
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- NDL
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