The identification of dilignols from dehydrogenation mixtures of coniferyl alcohol and apocynol

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Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield
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Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield

Published on: January 7, 2019

K Syrjänen1, J Sipilä, H Björk

  • 1Department of Chemistry, Laboratory of Organic Chemistry, P.O. Box 55, and Verifin, Finnish Institute for Verification of the Chemical Weapons Convention, P.O. Box 55, University of Helsinki, Helsinki FIN-00014, Finland. kaisa.syrjanen@helsinki.fi

Journal of Agricultural and Food Chemistry
|November 23, 2000
PubMed

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Preparation of Diols and Pinacol Rearrangement01:57

Preparation of Diols and Pinacol Rearrangement

Compounds bearing two hydroxyl groups are known as diols. When the hydroxyl groups are located on adjacent carbon atoms, the diols are called vicinal diols or glycols. Under acidic conditions, vicinal diols undergo a specific reaction called pinacol rearrangement.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.