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^*

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Tutkimustuotos: Lehtiartikkeli › Artikkeli › Tieteellinen › vertaisarvioitu

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Abstrakti

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.

Alkuperäiskieli	Englanti
Julkaisu	Holzforschung
DOI - pysyväislinkit	https://doi.org/10.1515/hf-2021-0093
Tila	Julkaistu - 2021
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

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10.1515/hf-2021-0093

Lagerquist hf-2021Lopullinen julkaistu versio, 548 KBLisenssi: Publisher rights policy

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

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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",

note = "Publisher Copyright: {\textcopyright} 2021 Walter de Gruyter GmbH, Berlin/Boston 2021.",

year = "2021",

doi = "10.1515/hf-2021-0093",

language = "English",

journal = "Holzforschung",

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T1 - Determination of chemical shifts in 6-condensed syringylic lignin model compounds

AU - Lagerquist, Lucas

AU - Rahkila, Jani

AU - Eklund, Patrik

PY - 2021

Y1 - 2021

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

U2 - 10.1515/hf-2021-0093

DO - 10.1515/hf-2021-0093

M3 - Article

AN - SCOPUS:85122005779

SN - 0018-3830

JO - Holzforschung

JF - Holzforschung

ER -

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

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