Alkylation ofβ-diketones of the hexahydroindan series and their enamines

Conclusions The reactions of hexahydro-1,3-indandlone with ammonia and some amines were studied, and the structures of the products formed were proved. In the alkylation of-diketones of the hexahydroindan series and their enamines under the usual conditions C-alkylation products are not formed.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1214–1218, July, 1966.     

Reaction of perfluoroisobutylene with potassium thiocyanate

Conclusions The authors obtained perfluoroisobutenyl isothiocyanate by reacting perfluoroisobutylene with potassium thiocyanate, and studied some of its properties.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1176–1178, May, 1969.     

The crystal structure of iododimethyl(trimethylamine)aluminum

The crystal structure of iododimethyl(trimethylamine)aluminium has been determined from single-crystal X-ray diffraction data collected by counter methods. I(CH₃)₂Al · N(CH₃)₃ crystallizes in the othorhombic space group Pnma with cell dimensions a=12.59(1), b=10.75(1), c=7.58(1)å, and p_calc=1.58 g·cm^?3 for Z=4. Least-squares refinement gave a final weighted R Value of 0.071 for 574 independet observed reflections. Each monomeric molecule lies on a crystallographic mirror plane with the trimethylamine and iododimethylaliminium groups in a staggered configuration about the aluminum  nitrogen bond.     

Zum Nachweis der Antibiotica in Milch

Ohne Zusammenfassung     

Eine Auftrennung von Phosphopeptiden aus enzymatischen Caseinhydrolysaten

Ohne Zusammenfassung     

Die quantitative Bestimmung von Vanadin mittels aktivierter Katalyse

Zusammenfassung Es wurden zwei Verfahren ausgearbeitet, um Vanadin mit Hilfe von aktivierter Katalyse zu bestimmen. Die Methodik ist geeignet, kleinste Spuren von Vanadin (bis herab zu 0,0006) mit ausreichender Genauigkeit zu ermitteln. Es werden Beleganalysen mitgeteilt.

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Summary Two procedures for the determination of vanadium have been worked out, based on activated catalysis, which allow minimal traces (down to 0,0006) of vanadium to be determined with adequate accuracy. Comparison analyses are given in the paper.

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Résumé On a élaboré deux procédés pour exécuter le dosage du vanadium à l'aide d'une catalyse activée. La méthode est apte à la détermination des plus petites traces de vanadium (jusqu'à 0,0006) avec une précision suffisante. On communique des analyses documentaires.

     

Stationary phase properties of the organic molten salt ethylpyridinium bromide in gas chromatography

Summary The organic molten salt, 1-ethylpyridinium bromide, is suitable for use as a stationary phase in gas chromatography. It has a usable liquid temperature range of 110 to 160°C. It undergoes a single phase transition at 110°C which corresponds to the bulk melting point. Below the melting point the phase may be used as a selective adsorbent, although column efficiency and peak symmetry deteriorate as the temperature is lowered from the melting point. Above the melting point, ethylpyridinium bromide can be used to separate a wide variety of organic compounds retaining strongly those compounds possessing large dipole or hydrogen bonding functional groups.