Occurrence and geochemical significance of 1,2,5,6-tetramethylnaphthalene

Details Occurrence and geochemical significance of 1,2,5,6-tetramethylnaphthalene Occurrence and geochemical significance of 1,2,5,6-tetramethylnaphthalene

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987gecoa..51.3023p&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 51, Issue 11, pp.3023-3029

Mathematics

Logic

Scientific paper

Analysis of aromatic hydrocarbon fractions of selected coal and shale samples reveals the predominance of two specific polyalkylnaphthalenes which have been identified as 1,2,5-trimethylnaphthalene and 1,2,5,6-tetramethylnaphthalene. The maturity of the samples is such that the source effect on the formation of individual molecules from biological precursors is expected to be recognisable. These alkylnaphthalenes are thought to be diagenetically derived from pentacyclic triterpenoids via 8,14-seco-triterpenoids, which are also detectable in some of the samples investigated. It is proposed that 1,2,5,6-tetramethylnaphthalene, in the coal samples, is formed by cleavage and methyl shift reactions from geminal C-4-methylated triterpenoids which contain a leaving group in position 3. For the shale samples, degradation of monoaromatic secohopanoids must be considered as an alternative pathway.

Affiliated with

Also associated with

No associations

Rating

Occurrence and geochemical significance of 1,2,5,6-tetramethylnaphthalene does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Occurrence and geochemical significance of 1,2,5,6-tetramethylnaphthalene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Occurrence and geochemical significance of 1,2,5,6-tetramethylnaphthalene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1713902