Crystal structure of barium isothiocyanato(ethylenediaminetetraacetato)cobaltate(III)

All-Union Scientific-Research Institute for Chemical Reagents and Highly Pure Chemical Substances. M. V. Lomonosov Moscow State University. Translated from Zhurnal Strukturnoi Khimii, Vol. 29, No. 4, pp. 120–127, July–August, 1988.     

Determination of the Ch acidity of certain ethyne ethers by polarographic reduction of their mercury derivatives

Conclusions New mercury derivatives of the ethyne ethers and sulfides have been prepared and their CH acidities determined by the polarographic reduction method.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1744–1747, August, 1981.     

(3,5-Diallylisocyanuratomethyl)phosphine oxides and some of their properties

Reaction of sodium diallylisocyanurate with tris(chloromethyl)-, bis(chloromethyl)phenyl-, and (chloromethyl)diphenylphosphine oxides yields, depending on the stoichiometric ratio of the reagents, mono-, bis-, and tris(3,5-diallylisocyanuratomethyl)phosphine oxides.A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Science Center, Russian Academy of Sciences, 420083 Kazan, Tatarstan, Russia. Translated fromIzvestiya Akademii Nauk, Seriya Khimicheskaya, No. 12, pp. 2773–2777, December, 1992.     

PMR spectra of derivatives of the cis and trans isomers of 4-amino-3-hydroxythiophane

The PMR and proton magnetic double resonance (PMDR) spectra were obtained for five cis and trans isomer pairs of substituted 4-amino-3-hydroxythiophanes. A comparison of the PMR parameters of the cis and trans isomers made it possible to formulate the characteristic differences in their spectra. On the basis of the data obtained, the trans configuration is proposed for the ethoxycarbonylamino and hydroxy groups in 4-ethoxycarbonylamino-3-hydroxy-3-cyanothiophane, the configuration of which has not been previously determined.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp.316–319, March, 1971.     

Transformation of ubiquinone-9 into ubiquinone-10 by the cuprate version of the Wurtz reaction at the key stage

Conclusions A 10-stage method was developed for the transformation of ubiquinone-9 into ubiquinone-10 by the cuprate version of the Wurtz reaction.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1612–1615, July, 1989.     

Self-association of trimethylsilyl-3,6-di-tert-butyl-o-semiquinone

The reaction of sodium 3,6-di-tert-butyl-o-semiquinolate with Me₃SiCl in THF leads to the formation of 2-(2-trimethylsiloxy-3,6-di-tert-butylphenoxy)-2-trimethylsiloxy-3,6-di-tert-butylcyclohexadien-3,5-one 1. On the basis of IR and UV spectroscopy and analysis of the reaction products, it has been determined that the cyclohexadiene structure 1 is preserved on heating to moderate temperatures or on reaction with water or HCl, but photolysis leads to its decomposition, and so does reaction with metallic sodium or alkali. A scheme of the process is propounded.Institute of Organometallic Chemistry, Russian Academy of Sciences, 603600 Nizhnii Novgorod. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 10, pp. 2385–2389, October, 1992.