ChemInform Abstract: Direct Substitution of Secondary Allylic Alcohols with O-Silylated Ketene acetals in 3.0 M Lithium Perchlorate-Diethyl Ether. An Alternative to the (1.3)Sigmatropic Rearrangement of Allyl Vinyl Ethers.
Abstract
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ChemInform Abstract
Allylic alcohols such as (I) or (IV) react with the O-silylated ketene acetal (II) in the presence of LiClO4 in ether to form products such as (III) or (V) and (VI). The cyclopropyl carbinol (VII) reacts analogously under similar conditions.