Acid-promoted Cyclization of Tetronic Acid to Alkene; Chemical Transformation of (-)-Ircinianin to (+)-Wistarin.
書誌事項
- タイトル別名
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- Acid-promoted Cyclization of Tetronic A
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The perchloric acid-promoted transformation of (-)-ircinianin (1) to (+)-wistarin (2) is described. The reaction of 1 with perchloric acid in acetonitrile gave 2 in 35% yield along with a positional isomer 4 in 35% yield. The structure of 4 was determined by two dimensional (2D) NMR studies. On the other hand, the reaction of 2-methyl-4-prenyltetronic acid (6), as a model compound for the above transformation, gave the cyclized product 8 corresponding to 2 in 58% yield and the keto-lactone 9 in 22% yield under the same conditions.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 46 (7), 1090-1093, 1998
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390282679135934976
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- NII論文ID
- 130003773826
- 110003616984
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- NII書誌ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- NDL書誌ID
- 4538348
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可