Preparation of five- and six- membered c
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Jiro Tsuji; Yuichi Kobayashi; Hideaki Kataoka; Takashi Takahashi
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Article
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1980
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Elsevier Science
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French
โ 220 KB
Methyl 3-oxo-S-phenoxy-6-octenoate (1) was cyclized using Pd(OAc)2-PPh3 as a catalyst to give 2-carbomethoxy-3-vinylcyclopentanone (2) and 2-carbomethoxy-4-cycloheptenone (3). The former was the main product in acetonitrile. 2-Alkylated 3-oxo-8-phenoxy-6-octenoates were converted mainly to the five-