Keywords Haploxylon Monoterpenes Resin acids J 8 ( 9 )-Isopimaric acid Chemotaxonomy Pinus monophylla Pinus quadrifolia Schlüsselwörter (Sachgebiete) Haploxylon Monoterpene Harzsäuren z! 8 ( 9 )-Isopimarsäure Chemotaxonomie Pinus monophylla Pinus quadrifolia Chemistry of Genus Pinus. VII. Monoterpenes, Fatty and Resin Acids of Pinus monophylla and Pinus quadrifolia
SummarySapwood and Heartwood of singleleaf pine (Pinus monophylla) and Parry pinyon pine (Pinus quadrifolia) were examined for monoterpenes and fatty and resin acids. The principal qualitative difference between terpene compositions of these two pines appears to be the presence of ßphellandrene, terpinolene, and camphene in singleleaf pine and their apparent absence in Parry pinyon pine. Two fatty acids and nine resin acids were identified as common to both species. The principal resin acid in each species is z! 8 < 9) -isopimaric acid, which has not been detected in six pine species belonging to the subgenus Diploxylon we have examined to date. Die Chemie der Gattung Pinus. VII. Monoterpene, Fett-und Harzsäuren von Pinus monophylla und Pinus quadrifolia Zusammen fassung Splint-und Kernholz von Pinus monophylla und Pinus quadrifolia wurden auf Monoterpene sowie Fett-und Harzsäuren untersucht. Der qualitative Hauptunterschied zwischen den Terpen-Verbindungen dieser beiden Kiefernarten scheint darin zu liegen, daß Pinus monophylla /?-Phellandren, Terpinolen und Camphen enthält, während diese Verbindungen bei Pinus quadrifolia offenbar fehlen. 2 Fettsäuren und 9 Harzsäuren wurden identifiziert, die in beiden Arten vorhanden waren. Die Haupt-Harzsäure in beiden Arten ist J 8 ( 9 >-Isopimarsäure. Diese Säure konnte in 6 Kiefernarten der Untergattung Diploxylon bis jetzt nicht nachgewiesen werden.
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