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Polyvinylogation reagents : 1-lithio-4-trimethylsiloxy-penta-1,3-diene and 1-lithio-4-ethoxy-2-methyl-buta-1,3-diene

✍ Scribed by Lucette Duhamel; Jean-Erick Ancel

Publisher: Elsevier Science
Year: 1992
Tongue: French
Weight: 635 KB
Volume: 48
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(01)85614-3

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✦ Synopsis

Title products, lithiodienol ethers ti and .& synthetic equivalents of I-lithio pent-3-ene-2-one and 4-lithio-senecialdehyde were obtained by bromine-lithium exchange. They are choice reagents for the transformations L + 2_ and L + L, respectively.

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