Rearrangements in Dihydroresorcinol Derivatives. IV. Claisen Rearrangement of 3-Allyloxy-2-cyclohexen-1-ones
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概要
- 論文の詳細を見る
Heating of 3-allyloxy-2-cyclohexen-1-ones (IIa, b, c) caused a Claisen rearrangement and simultaneous cyclization to give 2-methyl-4-oxo-2,3,4,5,6,7-hexahydrobenzofurans (IIIa, b, c) in 75,70 and 78% yields, respectively. Under similar conditions, 3-allyloxy-2-methyl-2-cyclohexen-1-one (VI) gave 2-allyl-2-methylcyclohexane-1,3-dione (VII) in 81% yield, and 3-prenyloxy-2-cyclohexen-1-one (VIII) gave 2,2,3-trimethyl-4-oxo-2,3,4,5,6,7-hexahydrobenzofuran (IX) in 95% yield. The reaction mechanisms were also discussed.
- 1971-03-25
著者
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田村 恭光
Faculty Of Pharmaceutical Sciences Osaka University
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寺島 正直
Faculty of Pharmaceutical Sciences, Higashi-Nippon-Gakuen University
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北 泰行
Faculty Of Pharmaceutical Sciences Osaka University
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嶋垣 正之
Faculty Of Pharmaceutical Sciences Osaka University
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寺島 正直
Faculty Of Pharmaceutical Sciences Higashi-nippon-gakuen University
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