Boroorganic compounds

Conclusions Cationic complexes of boron with imines as ligands have been obtained for the first time by interacting aminoboranes or arylalkylketiminoboranes with alkyl aryl ketimine hydrochlorides.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2053–2056, September, 1976.     

Organoboron compounds. Communication 136. Boron-germanium compounds

Summary Triethyl- and triphenyl-germanes add to dimethyl 2-propene-1-boronate with formation of dimethyl 3-(triethylgermyl)- and 3-(triphenylgermyl)-1-propaneboronates respectively.The NMR spectrum was measured by V. F. Bystrov, whom the authors thank. The authors also thank V. F. Mironov for the provision of a sample of 3-(triethylgermyl)-1-propanol.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 68–72, January, 1965     

Organoboron compounds

Conclusions The B-C bond in organoboron compounds is smoothly protolyzed by NaOH in ethylene glycol at 135–200°C.Translated from Izvestiya Akademiya Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1126–1128, May, 1977.     

Organoboron compounds

Conclusions Some B-derivatives (alkoxy, alkylmercapto, amino) of 3-borabicyclo[3.3.1]-6-nonene and 3-borabicyclo[3.3.1]nonane were obtained and studied.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, N. 4, pp. 824–827, April, 1968.     

Organoboron compounds

Summary In the reaction of tetraalkyldiboranes with boric esters there are formed alkaneboronic esters and, depending on the reaction conditions, diborane or 1,2-dialkyldiboranes.     

Alkoxy compounds

The reduction of alkoxymethylalkylmalonic esters with lithium aluminum hydride has given previously unknown 2-alkyl-2-alkoxymethyl-1, 3-propanediols, and by the condensation of these with ketones six previously unreported 2, 2, 5-trialkyl-5-alkoxymethyl-1, 3-dioxanes have been synthesized. The PMR spectra of these compounds have been studied and the unsymmetrical boat conformation has been shown for the 2, 2, 5-trialkyl-5-alkoxymethyl-1, 3-dioxanes. The causes of the stereochemical features of the compounds mentioned are discussed.For part XXII, see [5].     

Arylcopper-Magnesium compounds

The compounds Cu₄Mg(phenyl)₆·Et₂O, Cu₄Mg(p-tolyl)₆·Et₂O, and Cu₄Mg(p-tolyl)₆·x THF (x possibly 5) have been prepared by reaction of copper(I) bromide or copper(II) bromide with the bis(aryl)magnesium in ether or THF. These compounds are quite sensitive to air, especially oxygen, but when such contamination is avoided they are remarkably stable. Molecular weight measurements and solubility properties are consistent with a discrete metal cluster unit with pendant aryl groups. Proton magnetic resonance spectra suggest the presence of at least two, and probably more, aryl group environments on the metal cluster unit. Phenyl group exchange between Cu₄Mg(phenyl)₆·Et₂O and diphenylmagnesium in ether is also observed.     

Polyenic compounds

Summary -Ionone, -ionone, and pseudoionone diethyl mercaptoles react with ethyl vinyl ether in presence of boron trifluoride or zinc chloride with formation of ethylthio aldehyde monothio aceta ls.For Communication 16 see [1].Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 443–446, March, 1965