Syntheses of Ring-substituted Flavonoids and Allied Compounds. XII. Synthesis of (±)-Fukugetin Heptamethyl Ether
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抄録
3', 4', 5, 7-Tetramethoxyflavon-(8")-ylacetic acid (X), prepared from 2-hydroxy-4, 6-dimethoxyacetophenone (III) in five steps, was condensed with phloroglucinol dimethyl ether (XIV) by means of triphenylphosphine-carbon tetrachloride-triethylamine to give 3, 5-dimethoxyphenyl ester (XV), Fries rearrangement of wbich provided 8-(2"-hydroxy-4", 6"-dimethoxyphenacyl)-3', 4', 5, 7-tetramethoxyflavone (XIII). Condensation of the latter with anisaldehyde in the presence of potassium hydroxide in dimethyl sulfoxidemethanol, followed by cyclization with sulfuric acid afforded the flavonylflavanone derivative (II) identical with natural (±)-fukugetin heptamethyl ether.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 22 (6), 1326-1330, 1974
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
- 1390282679154430848
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- NII論文ID
- 110003633280
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- NII書誌ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可