Studies on Acetylenic Compounds. XXXII. Ring Closure of Propargyl Ethers. (2).
スポンサーリンク
概要
- 論文の詳細を見る
This is a new synthetic method for various 4-substituted-3-chromenes : phenyl propargyl ethers underwent intramolecular cyclization to give 4-chromene derivatives by heating with diethylaniline. The reaction mechanism was clarified by the study of substituted phenyl propargyl ethers under the consideration of their electronic effects on the yields of resulting 3-chromene ; in general, the presence of +R group enhanced the cyclization, whereas -R group gave much lower yields of the corresponding chromenes. Therefore, this intramolecular cyclization is concluded to be an electrophilic reaction.
- 公益社団法人日本薬学会の論文
- 1963-08-25
著者
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岩井 一成
Takamine Laboratory, Sankyo Co., Ltd.
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井手 純也
Takamine Research Laboratory, Sankyo Co., Ltd.
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井手 純也
Sankyo Research Laboratories, Sankyo Co., Ltd.,
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井手 純也
Sankyo Research Laboratories Sankyo Co. Ltd.
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岩井 一成
Central Research Laboratories Sankyo Co. Ltd.
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