Preparation of β-methylated α,β-unsatura
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Tamejiro Hiyama; Takashi Mishima; Katuzi Kitatani; Hitosi Nozaki
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Article
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1974
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Elsevier Science
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French
⚖ 205 KB
Although there have been several methods for one-carbon ring expansion by use of dichlorocyclopropanes, 1 the known procedures are synthetically not