The composition of the essential oils ofThymus marschallianus

The essential oil ofThymus marschallianus was obtained by steam distillation of freshly-gathered flowering plants growing at various heights of the Trans-Ili Ala-Tau range (Kazakhstan). The number of components detected was 49, of which 35 were identified. No appreciable differences in the composition of the essential oil with a change in the height of growth of the plant were observed. The essential oil ofTh. marschallianus and of a number of species growing in various countries have been compared.Institute of Chemical Sciences, Academy of Sciences of the Kazakh SSR, Alma-Ata. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 510–514, July–August, 1985.     

Composition of the essential oils ofArtemisia radicans andA. frigida

The results are given of the GLC analysis on a capillary column of the essential oils of two species of wormwood close in morphological characteristics growing in Kazakhstan:Artemisia radicans A. Kuprijanov andA. frigida Willd., fam. Asteraceae.Institute of Phytochemistry, Ministry of Science and Higher Education, Republic of Kazakhstan, Karaganda, fax (3212) 43 37 73. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp.478–480, July–August, 1999.     

Study of the oils of some species ofAmygdalus

Conclusions 1. The oils of wild almonds are very similar in fatty acid composition and physical and chemical properties to the oil of cultivated almonds.2. The oils ofAmygdalus bucharica andA. Petounnicovii have a higher content of triunsaturated glycerides than the oil of cultivated almonds.3. The replacement of cold pressing of almond kernels by low-temperature extraction does not adversely affect the quality of the oils. They do not contain any hydrocyanic acid and, according to pharmacological tests, can be recommended as medicinal oils.Khimiya Prirodnykh Soedinenii, Vol. 6, No. 4, pp. 402–406, 1970     

Composition of seed essential oils of Rhododendron tomentosum

For the first time, the chemical composition of the seed essential oil of Rhododendron tomentosum was determined. Forty-seven compounds were identified, comprising 91.7% of the total oil. Palustrol (38.3%) and ledol (27.0%) were the predominant constituents. Some constituents, such as beta-pinene oxide, iso-menthyl acetate, nerolidyl acetate, cadalene and guaiazulene were characteristic only for the seeds and were identified for the first time in Rh. tomentosum oils. For comparison purposes, the essential oil isolated from the shoots of the same plant were analyzed [GC(FID) in combination with RIs, GC-MS and 13C NMR]. More than a half of the oil was comprised of ledol (36.5%) and palustrol (21.0%). Quantitative analysis of ascaridol, a heat-sensitive compound, was carried out by 13C NMR spectroscopy. Indeed, ascaridol undergoes partial thermal isomerization to iso-ascaridol during GC analyses.     

Alkaloids ofPetilium raddeana. V. Structure of petisidinone

From the epigeal part ofPetilium raddeana have been isolated the known alkaloids edpetiline and edpetine and the new base petisidinone with mp 217–219°C, []_D 0° (c 0.169; chloroform), C₂₇H₃₉NO₃ (I). When the known alkaloid petisidine was oxidized, a product identical with petisidinone (I) was obtained. Thus, the structure of (I) has been established as 26,23-nitrilocholestane-3,6,22-trione. Details of the IR, PMR, and mass spectra of (I) are given.Institute of the Chemistry of Plant Substances of the Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh soedinenii, NO. 5, pp. 620–622, September–October, 1986.     

Composition of the essential oils of Lycium barbarum and L. ruthenicum fruits

Water-distilled essential oils from the fruits of Lycium barbarum and L. ruthenicum were analyzed by GCMS. The main components in the oil of L. barbarum were found to be hexadecanoic acid (47.5%), linoleic acid (9.1%), β-elemene (5.4%), myristic acid (4.2%), and ethyl hexadecanoate (4.0%). The essential oil of L. ruthenicum has heptacosane (14.3%), ethyl linoleate (10.0%), hexacosane (7.0%), nonacosane (6.2%), and ethyl hexadecanoate (5.8%) as the main compounds. Published in Khimiya Prirodnykh Soedinenii, No. 1, pp. 20–21, January–February, 2006.