Determination of chemical shifts in 6-condensed syringylic lignin model compounds

Lucas Lagerquist; Jani Rahkila; Patrik Eklund

doi:10.1515/hf-2021-0093

Determination of chemical shifts in 6-condensed syringylic lignin model compounds

Lucas Lagerquist, Jani Rahkila, Patrik Eklund^*

^*Korresponderande författare för detta arbete

Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review

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Sammanfattning

A small library of 6-substituted syringyl model compounds with aliphatic, carboxylic, phenylic, benzylic alcohols and brominated substituents were prepared. The influence of the substituents on the chemical shifts of the compounds was analyzed. All of model compounds showed a characteristic increase in the 13C NMR chemical shift of the methoxy group vicinal to the substitution. This 13C NMR peak and its corresponding correlation peak in HSQC could potentially be used to identify 6-condensation in syringylic lignin samples.

Originalspråk	Engelska
Tidskrift	Holzforschung
DOI	https://doi.org/10.1515/hf-2021-0093
Status	Publicerad - 2021
MoE-publikationstyp	A1 Tidskriftsartikel-refererad

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10.1515/hf-2021-0093

Lagerquist hf-2021Slutlig publicerad version, 548 KBLicens: Publisher rights policy

https://urn.fi/URN:NBN:fi-fe2023050139638

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title = "Determination of chemical shifts in 6-condensed syringylic lignin model compounds",

abstract = "A small library of 6-substituted syringyl model compounds with aliphatic, carboxylic, phenylic, benzylic alcohols and brominated substituents were prepared. The influence of the substituents on the chemical shifts of the compounds was analyzed. All of model compounds showed a characteristic increase in the 13C NMR chemical shift of the methoxy group vicinal to the substitution. This 13C NMR peak and its corresponding correlation peak in HSQC could potentially be used to identify 6-condensation in syringylic lignin samples. ",

keywords = "condensation, HSQC, lignin model compounds, NMR-spectroscopy, syringyl",

author = "Lucas Lagerquist and Jani Rahkila and Patrik Eklund",

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AU - Rahkila, Jani

AU - Eklund, Patrik

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N2 - A small library of 6-substituted syringyl model compounds with aliphatic, carboxylic, phenylic, benzylic alcohols and brominated substituents were prepared. The influence of the substituents on the chemical shifts of the compounds was analyzed. All of model compounds showed a characteristic increase in the 13C NMR chemical shift of the methoxy group vicinal to the substitution. This 13C NMR peak and its corresponding correlation peak in HSQC could potentially be used to identify 6-condensation in syringylic lignin samples.

AB - A small library of 6-substituted syringyl model compounds with aliphatic, carboxylic, phenylic, benzylic alcohols and brominated substituents were prepared. The influence of the substituents on the chemical shifts of the compounds was analyzed. All of model compounds showed a characteristic increase in the 13C NMR chemical shift of the methoxy group vicinal to the substitution. This 13C NMR peak and its corresponding correlation peak in HSQC could potentially be used to identify 6-condensation in syringylic lignin samples.

KW - condensation

KW - HSQC

KW - lignin model compounds

KW - NMR-spectroscopy

KW - syringyl

UR - http://www.scopus.com/inward/record.url?scp=85122005779&partnerID=8YFLogxK

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M3 - Article

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Determination of chemical shifts in 6-condensed syringylic lignin model compounds

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