Gomphacil — A cardenolide glycoside ofGomphocarpus fruticosus

The leaves ofGomphocarpus fruticosus (L.) R.Br. have yielded the new acetylated glycoside gomphacil, which is (3-O-1,2-O-2)-(3-acetoxy-2-hydroxy-4,6-dideoxyhexulosido)-14-hydroxy-5-card-20(22)-enolide.State Scientific Center for Drugs, Ukraine, 310085, Kharkov, ul. Astronomicheskaya, 33. Ukrainian Pharmaceutical Academy, 310002, Kharkov, ul. Pushkinskaya, 53. Translated from Khimiya Prirodnykh Soedinenii, Vol. 33, No. 1, pp. 71–73, January–February, 1997.     

Synthesis ofα-nitromethylpyridine and derivatives

-Nitromethylpyridine and -nitromethyl-ß-ethylpyridine are obtained by treating the corresponding nitrophthalones with 10% aqueous alkali. Treatment of the compounds with bromine gives the hydrobromides of the dibromo derivatives, which on treatment with aqueous sodium bicarbonate solution give the corresponding bases. Addition products of -nitromethylpyridine at the double bond of chalcone and 2-benzylidenindan-1,3-dione were obtained.     

The O-nitration of tertiary unsaturated alcohols andα-epoxyalcohols

Conclusions The method for O-nitrating unsaturated alcohols and-epoxyalcohols has been extended to tertiary alcohols;, -dimethylallyl and, ;-dimethylglycidyl nitrates have been synthesized.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1354–1355, June, 1967.     

Chemical modification of furanoeremophilan-14β,6α-olide

On performing the modification of furanoeremophilan-14,6-olide at the most reactive fragments of the molecule, the lactone and furan rings, it was established that in an alkaline medium furanoeremophilan-14,6-olide isomerizes into the 14,6-olide; the oxidation of furanoeremophilan-14,6-olide to a dilactone in the presence of Rose Bengal takes place with high yield under mild conditions — atmospheric oxygen, without heating and irradiation; on the interaction of furanoeremophilan-14,6-olide with selenium dioxide in glacial acetic acid a selenium-containing dimer is formed.Institute of Chemical Sciences of the Kazakh SSR Academy of Sciences, Alma-Ata. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 189–193, March–April, 1989.     

Steroid compounds from the Pacific starfishesLuidia quinaria andDistolasterias elegans

One new and four previously known steroid compounds were identified from the Pacific starfishesLuidia quinaria andDistolasterias elegans. The structure of the new steroid was established from spectral data and chemical correlations with other steroids such as 5-cholestane-3,5,6,15,16,26-hexaol 3-sulfate (1). The previously known compounds were identified as 5-cholestane-3,5,6,15,26-pentaol 15-sulfate (2) fromLuidia quinaria and sodium (24S)-O-(-d-giucopyranosyll-5-cholestane-3,6,8,15,24-pentaol 6-sulfate (3), sodium (24S)-5-cholestane-3,6,8,15,24-pentaol 24-sulfate (4), and sodium tornasterol A sulfate (5).Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 473–476, February, 1996.     

Essential Oils of Nepeta Species Growing in Turkey

Essential oils from 22Nepetaspecies growing in Turkey have been studied. Results of GC/MS analyses of the essential oils have shown that four Nepeta species contain 4a-7-7a-nepetalactone as the major component. 4a-7-7a-Nepetalactone was the main constituent in N. racemosa. Seven Nepeta species contained caryophyllene oxide as the main constituent in their essential oils. 1,8-Cineole/linalool were the major components in the essential oils of six species. -Pinene,-terpineol,germacrene-D,and spathulenol were the main constituents in the essential oils fromN. phyllochlamys, N. viscida, N. sorgerae, andN. trachonitica, respectively.     

Deutung der K α-satelliten bei leichten Elementen

Zusammenfassung Ausgehend von der KL-Ionisation wurden die K -Satelliten(, , ₃, ₃, ₄) der Elemente Z=8 bis Z=12 den entsprechenden Übergängen zugeordnet. Die Berechnung der Übergänge wurde nach der Z-Dependence-Theorie bis einschließlich zweiter Näherung durchgeführt.

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Interpretation of the K -satellites of the light elements

Starting from the KL-ionisation the K -satellites(, , ₃, ₃, ₄) of the elements Z=8 to Z=12 have been assigned to the corresponding transitions. The transitions have been calculated by the Z-dependence-theory including the second approximation.

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Résumé Les satellites K (, , ₃,₃, ₄) des éléments Z= 8 à Z=12 ont été attribués aux transitions correspondantes à partir de l'ionisation KL. Les transitions ont été calculées par la théorie dépendant de Z en tenant compte de l'approximation seconde.

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Herrn Prof. Timm in dankbarer Würdigung der Hilfen, die die BASF für den Aufbau unserer theoretisch-chemischen Arbeitsgruppe geleistet hat, zum 60. Geburtstag gewidmet.

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Der Deutschen Forschungsgemeinschaft dankt D. H. für die finanzielle Unterstützung, die die Dunchführung dieser Arbeit wesentlich erleichterte.     

Zusammenhang zwischen den K α-Satelliten-Linien und den Röntgenübergängen vom Typ K 1 L 1→L 2 bei den Elementen Neon,Natrium, Magnesium,Aluminium und Silizium

Zusammenfassung Für die Elemente Neon, Natrium, Magnesium, Aluminium und Silizium werden mit einem quantenmechanischen Variationsverfahren unter Verwendung einer minimalen STF-Funktionenbasis Röntgenübergänge vom Typ K ¹L¹L² berechnet und den K -Satellit-Linien , , ₃, ₃ and ₄ zugeordnet.

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Relation between K -Satellits and X-ray-transitions of the type K ¹ L ¹L ² for Ne, Na, Mg, Al and Si

STF-Calculations are reported for X-ray-transitions of the type K ¹L¹L² for Ne, Na, Mg, Al and Si. It is shown that these transitions are correlated with the K -satellits , , ₃, ₃ and ₄.

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Die Wellenfunktionen können auf Anfrage zur Verfügung gestellt werden.     

Transformed steroids. 160. Reaction of 20,20-dimethoxy-16α,17α-epoxypregn-5-ene-3β, 21-diol-20-one with pyridine thiocyanate and carbethoxyhydrazine

Conclusion The reaction of 20,20-dimethoxy-16,17-epoxypregn-5-ene-3,21-diol-20-one with pyridine thiocyanate in the presence of carbethoxyhydrazine proceeds by two competing paths: cisopening of the oxide ring by a -SCN ion at the C¹⁷ atom, and substitution of one of the methoxyl groups by -NCS ion. As a result 2,20-dicarbethoxyhydrazones of pregn-5-ene-3,21-diol-20-one-[17,16-d]-1,3-oxathiolan-2-one and 20-methoxy-16,17-epoxypregn-5-ene-3-ol-[20,21-d]-1,3-oxazolidine-2-thione are formed.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 911–914, April, 1987.     

The reaction of hypophosphorous acid with chloral

Conclusions The condensation of chloral with hypophosphorous acid has given,,-triebloro--hydroxyethyl phosphonous and bis-(, ,-trichloro--hydroxyethyl)-phosphinic acids.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, p. 1095, June, 1966.