Crystal and molecular structure of 1-nitro-2-phenylamino-1,3,4,4-tetrachloro-1,3-butadiene

Institute of Physical Organic Chemistry, Belorussian Academy of Sciences. Institute of Bioorganic Chemistry, Belorussian Academy of Sciences. Translated from Zhurnal Strukturnoi Khimii, Vol. 33, No. 5, pp. 150–152, September–October, 1992.     

Separation of the alkaloids deoxypeganine,peganol, and deoxyvasicinone by the HPLC method

Institute of Chemistry of Plant Substances Academy of Sciences of the Uzbek SSR, Tashkent. Scientific Center for Chromatography, Academy of Sciences of the Uzbek SSR. Institute of the Chemistry and Physics of Polymers, Academy of Sciences of the Uzbek SSR, Tashkent. Iranslated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 297–298, March–April, 1991.     

Total synthesis of the racemic alkaloid diptocarpamine

A route for the synthesis of racemic diptocarpamine from hex-5-enoic acid has been developed.Institute of Chemistry, Bashkir Scientific Center of the Urals Branch, USSR Academy of Sciences, Ufa. Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 232–236, March–April, 1989.     

Electronic structure of the π-dianions and π-dications of porphyrins

Institute of Physics, Academy of Sciences of the Belorussian SSR. Institute of Physical Organic Chemistry and Coal Chemistry, Academy of Sciences of the Ukrainian SSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No. 5, pp. 42–51, September–October, 1991.     

Insect pheromones and their analogs. XI. Synthesis of 2,6-dimethylhepta-1,6-dien-3-ol acetate — The sex attractant ofPseudococcus comstocki

A new synthesis of 2,6-dimethylhepta-1,6-dien-3-ol acetate (I) — the sex attractant of The Comstock mealybug — has been developed.Institute of Chemistry, Bashkir Branch, Academy of Sciences of the USSR, Ufa. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 259–261, March–April, 1985.     

Total synthesis of racemic diptocarpidine and diptocarpiline

Convenient methods for the synthesis of racemic diptocarpidine and racemic diptocarpiline have been proposed on the basis of the readily available 6-phthalimidohexyl bromide and hept-6-enoic acid.Institute of Chemistry, Bashkir Branch, Academy of Sciences of the USSR, Ufa. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 76–82, January–February, 1988.     

Synthesis of the racemic alkaloid diptocarpilidine

A convenient approach to the synthesis of the racemic alkaloid diptocarpilidine from the readily available l-hydroxy-7-thiaoctane has been developed.Institute of Chemistry, Bashkir Scientific Center, Urals Branch Academy of Sciences of the USSR, Ufa. Institute of Chemistry of Plant Substances, Academy of Sciences of the Ubzek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 261–263, March–April, 1991.     

Crystal structure investigation of ternary molybdates Li3Ba2Ln3(MoO4)3 (Ln=Gd,Tm)

Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences. Institute of Physics, Siberian Branch, Russian Academy of Sciences. Buryat Institute of Natural Sciences, Siberian Branch, Russian Academy of Sciences. Translated from Zhurnal Strukturnoi Khimii, Vol. 33, No. 3, pp. 126–130, May–June, 1992.     

New derivatives of (?)-neocembrene from the soft coral Sarcophyton trocheliophorum

A hexane extract of the soft coralSarcophyton trocheliophorum has yielded two new diterpenoids for which the structures of 13S-hydroxy-(–)-neocembrene and 13S-hydroxy-11,12-epoxy-(–)-neocembrene have been established.Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR. Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Branch, Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 535–540, July–August, 1988.     

X-ray structural investigation of alkaloids. II. Molecular structure and absolute configuration of (?)-pseudokopsinine

Summary By a complete x-ray structural investigation, the structural formula of (–)-pseudokopsinine has been refined and its absolute configuration has been determined.Institute of Heteroorganic Compounds, Academy of Sciences of the USSR, Moscow. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 197–206, March–April, 1976.     

Electrohydraulic effect in heterodisperse water-plant systems. II. Chemical nature of the suspended particles

On the basis of the results of acid hydrolysis, chromatographic analysis of the hydrolysates, and a study of IR spectra, it has been established that the suspended particles liberated under the action of electrohydraulic shocks on heterodisperse water—plant systems consist of small fragments of the lignocarbohydrate complex of the plant tissue.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent. FAX (3712) 62 73 48. Division of Wood Chemistry, Irkutsk Institute of Organic Chemistry, Siberian Division of the Russian Academy of Sciences. Institute of Solar and Terrestrial Physics, Siberian Division of the Russian Academy of Sciences, Irkutsk, FAX (395-3) 46 25 57. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 435–439, May–June, 1994.     

Isolation of an indanone fromEquisetum arvense and its crystal and molecular structure

Summary From the herbEquisetum arvense L. an indanone compound has been isolated for the first time for which the structure of 4-hydroxy-6-(2-hydroxyethyl)-2,2,5,7-tetramethylindanone has been established by spectroscopy and x-ray structural analysis.Irkutsk Institute of Organic Chemistry, Siberian Branch of the Academy of Sciences of the USSR. Institute of Applied Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 508–513, July–August, 1978.     

A new synthesis of the pheromone of the codling moth — Dodeca-8E,10E-dien-1-ol — Via an enynic intermediate

A new method has been developed for the synthesis of the main component of the pheromone of the codling moth — dodeca-8E,10E-dien-l-ol — using in the key stages Wittig reactions and the trans-hydride reduction of the triple bond of an intermediate enynol.Institute of Organic Chemistry, Academy of Sciences of the Armenian SSR, Erevan. Institute of Organic Chemistry and Biochemistry, Academy of Sciences of Czechoslovakia, Prague. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 117–123, January–February, 1991.     

Crystal structure of 1,2-bis-(phenylseleno)-1,2-dichlorethene

Vladimir State Pedagogical Institute. Institute for Elementorganic Compounds, Russian Academy of Sciences. Irkutsk Institute for Organic Chemistry, Siberian Branch, Russian Academy of Sciences. Translated from Zhurnal Strukturnoi Khimii, Vol. 33, No. 4, pp. 153–154, July–August, 1992.     

Carbohydrates of cultivated varieties ofAlthea rosea

The polysaccharides of three cultivated varieties ofAlthea rosea have been investigated. The amounts of water-soluble polysaccharides and pectin substances in various organs of the plant have been determined. It has been shown that the maximum amount of water-soluble polysaccharides and pectin substances is present in the flowers. Their monosaccharide compositions have been studied. The physicochemical characteristics of the pectin substances are given.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent. A. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan. Tashkent. Institute of Botany, Academy of Sciences of the Republic of Uzbekistan, Tashkent. Translated from Khimiya Prirodnykh Soedineii, No. 5, pp. 643–646, September–October, 1993.     

Glycosylation of cardenolides III. Partial syntheses of convallatoxin, evomonoside, and periplorhamnoside

Summary Partial syntheses of convallatoxin, evomonoside, and periplorhamnoside have been performed by the condensation of an acetlyated L-rhamnopyranose orthoacetate with the appropriate aglycones. The yields of the final product varied between 48 and 57%.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSSR, Tashkent. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 58–60, January–February, 1976.     

Molecular structure of 1-morpholino-3-phenyl-5,6,7,8-tetrachloro-1,2,4-benzothiadiazine

Institute of Organic Chemistry, Academy of Sciences of the Ukrainian SSR. Institute of Applied Physics, Academy of Sciences of the Moldavian SSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No. 2, pp. 172–174, March–April, 1991.     

Crystal structure of 3-[dimethyl-4-phenyl-3,5-dioxacyclohexyl)-methyl]-1,5,8,11-tetraoxacyclotridecane

Institute of Applied Physics, Academy of Sciences of the Moldavian SSR. Physical Chemistry Institute, Academy of Sciences of the Moldavian SSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No. 3, pp. 136–138, May–June, 1991.