The Influence of Solvent and Derivatization on the 1H NMR Spectral Properties of Lignin Model Compounds
Paper i proceeding, 2008

1H NMR spectral data for lignin model compounds are of interest in connection with the interpretation of NMR spectra of lignins recorded by 1D (1H NMR) and certain 2D spectroscopic techniques. Derivatization influences the peak positions in the 1H NMR spectra of lignin models to a large extent. Similarly an exchange of solvent often results in dramatic shifts of peak positions. Solvent and derivatization effects can be employed for the interpretation of lignin spectra in structural terms. This is here exemplified by results from analyses of lignin samples with respect to total hydroxyl, phenolic groups, distribution of diastereomers of arylglycerol β-aryl ethers, different types of β-β structures and occurrence of 1-aryl-2-aryloxy-1-propanone structures.

Författare

Shiming Li

Chalmers, Kemi- och bioteknik, Fysikalisk kemi

Knut Lundquist

Chalmers, Kemi- och bioteknik, Skogsindustriell kemiteknik

Proceedings of the10th EUROPEAN WORKSHOP ON LIGNOCELLULOSICS AND PULP, EWLP 2008; KTH Royal institute of Technology, Stockholm, Sweden 25-28 August 2008

312-315

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Organisk kemi