Class Id resinite from Canada: A new sub-class containing succinic acid

► Resinites from three distinct deposits in Canada were studied. ► Samples were analysed using Py-GC–MS and FTIR. ► The resinites have enantio polylabdanoid matrices incorporating succinic acid. ► There is evidence of partial esterification of ozol with succinic acid. ► A new sub-category of Class I...

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Bibliographic Details
Published in:Organic geochemistry 2012-03, Vol.44, p.37-44
Main Authors: Poulin, Jennifer, Helwig, Kate
Format: Article
Language:English
Subjects:
diterpenoids
Earth sciences
Earth, ocean, space
esterification
Exact sciences and technology
Fourier transform infrared spectroscopy
Geochemistry
Indexing in process
mass spectrometry
Soil and rock geochemistry
succinic acid
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Summary:► Resinites from three distinct deposits in Canada were studied. ► Samples were analysed using Py-GC–MS and FTIR. ► The resinites have enantio polylabdanoid matrices incorporating succinic acid. ► There is evidence of partial esterification of ozol with succinic acid. ► A new sub-category of Class Id resinites was designated. This paper describes a new sub-category of Class I resinites based on labdanoid diterpenes having an enantiomeric configuration, including ozic acid, ozol and enantio biformenes, and incorporating succinic acid. This hitherto unnamed resinite sub-class, now designated as Class Id, has been identified in three distinct deposits in Canada: two sites in Nunavut and one site in British Columbia. The composition of Class Id resinites was determined using pyrolysis-gas chromatography–mass spectrometry with in situ trimethylsilylation with hexamethyldisilazane, Py(HMDS)-GC–MS. Fourier transform infrared spectroscopy (FTIR) of the resinites was also carried out and provided evidence of partial esterification of the ozol with succinic acid.
ISSN:0146-6380
1873-5290
DOI:10.1016/j.orggeochem.2011.11.012