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Composition of the neutral fraction of the resin ofPinus sibirica R. Mayr.

II. Oxygen-containing compounds of the high-boiling neutral fraction of the cedar resin

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Summary

1. The high-boiling neutral fraction of the resin of the Siberian cedar contains abietinal, a diterpene diol C20H34O2, and the diterpene alcohol cembrol C20H34O2 which has a 14-membered ring and three double bonds; the dehydration of cembrol gives the diterpene hydrocarbon cembrene C20H32; the probable structure of cembrol is 14-isopropyl-3, 7, 11-trimethylcyclotetradeca-1, 3, 6-trien-11-ol.

2. Besides the diterpene alcohols and abietinal, the high-boiling oxygen containing fraction of the cedar resin contains D-δ-cadinol C15H26O and a lactone C17H26O3.

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Additional information

Khimiya Prirodnykh Soedinenii, Vol. 1, No. 4, pp. 250–256, 1965

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Lisina, A.I., Rezvukhin, A.I. & Pentegova, V.A. Composition of the neutral fraction of the resin ofPinus sibirica R. Mayr.. Chem Nat Compd 1, 193–197 (1965). https://doi.org/10.1007/BF00566868

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Keywords

  • Activity Grade
  • Neutral Alumina
  • Semicarbazone
  • Neutral Fraction
  • Tetranitromethane