Abstract

The composition of the neutral fraction of the resinous substances of the wood of the Dahurian larch growing in the region of BAM [Baikal Amur Railway] has been investigated. About 40 terpenoids have been identified, and the compositions of the saturated hydrocarbons and aliphatic alcohols have been determined (GLC). The main components of the neutral substances are bicyclic compounds with the labdane structure: epimanool, and larixol and its monoacetate, making up about one-third of the neutral substances. In contrast to the species of larch studied previously, in the Dahurian larch we found squalene, cycloartenone, and pimosylvin dimethyl ether; in contrast to the Siberian larch, this species contained no epitorulosol and its derivatives.

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