Crystal and molecular structure of trans-nitro-bis(dimethylglyoximato) sulfanilamide-6-(4,5-dimethoxy)pyrimidinylcobalt(III) and trans-nitrobis(dimethylglyoximato)sulfanilamide-6-(2,4-dimethoxy)pyrimidinylcobalt(III)

Institute of Applied Physics, Moldavian SSR Academy of Sciences. Institute of Chemistry, Moldavian SSR Academy of Sciences. Translated from Zhurnal Strukturnoi Khimii, Vol. 31, No. 3, pp. 77–83, May–June, 1990.     

Crystal and molecular structure of [9-(2′-tosylaminophenyl)-6-methylthio-3-acetyl-5,7,8-triazanone-3,6,8-thien-2-one]

Institute for Applied Physics, Academy of Sciences of the Moldavian SSR. Institute of Chemistry, Academy of Sciences of the Moldavian SSR. Nat. Research Institute for Physics and Organic Chemistry, Rostov State University. Translated from Zhurnal Strukturnoi Khimii, Vol. 31, No. 2, pp. 199–202, 1990.     

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.     

Semicalassical vibronic model for the Creutz-Taube ion

Institute of Chemistry, Academy of Sciences of the Moldavian SSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No 1, pp. 44–48, January–February, 1991.     

The structure and stereochemistry of teucrin A

Summary The structure of teucrin A has been confirmed by spectral and chemical methods and the relative configurations at all the asymmetric centers have been shown.Institute of Chemistry, Academy of Sciences of the Moldavian SSR. Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 169–175, March–April, 1973.     

Crystal and molecular structure of trans-iodo-bis-dimethylglyoximato-6-(4,5-dimethoxy) sulfanilamidepyrimidinylcobalt(III) sesquihydrate

Institute of Applied Physics and Institute of Chemistry, Academy of Sciences of the Moldavian SSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 30, No. 3, pp. 155–161, May–June, 1989.     

Structure of stachysolone

Summary It has been shown that stachysolone — a bitter substance fromStachys annua L. — is a diterpenoid with a rearranged labdane hydrocarbon skeleton of the kolavane type. Structural formula (I) has been established for stachysoloneInstitute of Chemistry, Academy of Sciences of the Moldavian SSR. Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czechoslovakian SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 295–299, May–June, 1972.     

Steroid glycosides fromAsparagus officinalis asparagosides F and H

Summary The structures of two new steroid glycosides isolated from garden asparagus have been shown.Kishinev State Medical Institute. Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 810–813, November–December, 1977.     

Molecular rearrangements of tetra- and pentacyclic diterpenoids formed with the participation of pimarane intermediates

The molecular rearrangements of tetra- and pentacyclic diterpenoids formed with the participation of pimarane intermediates are considered.Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 3–16, January–February, 1991.     

Isoagathane diterpenoids

The chemistry, stereochemistry and methods of synthesis, and also natural sources of isoagathane diterpenoids are discussed.Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 397–410, July–August, 1986.     

Transformation products of sclareol IV. Stereochemistry and mass-spectrometric fragmentation of some bicyclohomofarnesane oxides

Summary The stereochemistries of three oxides of the bicyclohomofarnesane series have been established by spectral and chemical methods.Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 449–454, July–August, 1978.     

Synthesis of 15-carboxy-(−)-kaurenes

From the readily available (–)-kaurene and 6-acetoxy-18-methoxycarbonyl-(–)-kaurene the corresponding 15-carboxy derivatives have been synthesized. In biotests on the elongation of wheat coleoptiles and the introduction of the synthesis of -amylase in isolated wheat endosperms, these compounds do not exhibit gibberellin-like activity.Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Institute of Plant Physiology and Biochemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 217–220, March–April, 1981.     

Steroid saponins XIV. The structure of agavoside G from the leaves ofAgava americana

Summary The complete structure of agavoside G, a new steroid glycoside of the furostanol series, has been shown.Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 486–491, July–August, 1976.     

Steroid glycosides of the roots ofCapsicum annuum. I. The structure of capsicosides A1, B1, and C1

Three new steroid glycosides of the spirostan series — capsicosides A₁, B₁, and C₁ — have been isolated from a methanolic extract of the roots of red pepper. In an investigation of the products of complete acid hydrolysis of these glycosides, a single aglycon — gitogenin — was identified. The complete chemical structure of each of the capsicosides has been shown with the aid of complete and partial acid hydrolysis, methylation and methanolysis, and periodate oxidation, and also by physicochemical methods of investigation.Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Institute of Ecological Genetics, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 708–712, November–December, 1986.     

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.     

Steroid saponins. XIII. The structure of alliumosides D and E fromAllium narcissiflorum

Summary Two new steroid glycosides of the furostanol series have been isolated fromAllium narcissiflorum Wills., and their structures have been shown.Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 184–188, March–April, 1976.     

Template synthesiS: Geometrical and electronic structures of the Fe nitrosyl complex formed by bis(S-methylisothiosemicarbazone)-2,4-pentandione

Sodium acetylacetonate reacts with S-metliylisothiosemicarbazidium nitrate and Fe(NO₃)₃ · 9H₂O in ethanol to make [Fe(HL)NO]NO₃, in which H₃L is bis(S-methyl-isothiosemicarbazone)-2,4-puntandione. The [Fe(HL)NO]⁺ cation has a square pyramidal structure with the HL^2- arranged around the central ion in the basal plane and the nitrogen atom of the NO group in the apical position, with the iron atom diverging from the plane of the base of the pyramid by 0.477 Å. The FeN0 moiety has a linear structure (FeNO = l72.7°). XRD, IR, and Mössbauer spectroscopy have been combined with calculations on the electronic structure to demonstrate that the Fe-NO bond is covalent.Chemical Institute, Academy of Sciences of Moldavian SSR. Applied Physics Institute, Academy of Sciences of the Moldavian SSR. Kishinev. Institute of Crystallography, Academy of Sciences of the USSR. Kurnakov Institute for General and Inorganic Chemistry, Academy of Sciences of the USSR, Moscow. Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 27, No, 3, pp. 376–381, May–June, 1991. Original article submitted February 18, 1991.     

Dehydroabietane from the oleoresin of Pinus pallasiana

Summary The known diterpene hydrocarbon dehydroabietane has been isolated from a natural source — the oleoresin of the Crimean pine — for the first time.Institute of Chemistry, Academy of Sciences of the Moldavian SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 20–22, January, 1971.     

Triterpene glycosides of leguminosae II. Structure of the main glycoside of the kidney bean

Conclusions The main component of the glycoside fraction of the kidney bean has been isolated; it consists of crystalline phaseoloside D, whose complete chemical structure has been shown.Institute of Chemistry, Academy of Sciences of the Moldavian SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 559–563, September–October, 1970.