Studies on Seven-membered Ring Compounds. XXXVII. The Reaction of Benzotropones with Malononitrile
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概要
- 論文の詳細を見る
4,5-Benzotropone reacted with malononitrile in acetic anhydride or in ethanol-piperidine to afford 8,8-dicyano-3,4-benzoheptafulvene (6a). On the other hand, 2,3-benzotropone reacted with malononitrile in acetic anhydride to afford 8,8-dicyano-1,2-benzoheptafulvene (8a) and 6-cyano-7-amino-3,4-benzobicyclo[3,2,2]nona-3,5,8-trien-2-one (9a). The reaction mechanism revealed that 8a was afforded not only by Knoevenagel reaction but also by Michael addition at 4-position of 2,3-benzotropone.
- 公益社団法人日本薬学会の論文
- 1972-12-25
著者
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桑野 晴光
Central Research Laboratories, Sankyo Co., Ltd.
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桑野 晴光
Analytical and Metabolic Research Laboratories
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岸田 有吉
Central Research Laboratories Sankyo Co. Ltd.
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相馬 信夫
Central Research Laboratories, Sankyo Co., Ltd.
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杉村 征夫
Central Research Laboratories, Sankyo Co., Ltd.
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飯野 公夫
Central Research Laboratories, Sankyo Co., Ltd.
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杉村 征夫
三共(株)化学研究所
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杉村 征夫
Central Research Laboratories Sankyo Co. Ltd.
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飯野 公夫
Central Research Laboratories Sankyo Co. Ltd.
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相馬 信夫
Central Research Laboratories Sankyo Co. Ltd.
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