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  • 1
    Electronic Resource
    Electronic Resource
    Correlation of the frequencies in the spectra of methylacetoxysilanes and their deutero-derivatives (1974)
    Springer
    Russian chemical bulletin 23 (1974), S. 1424-1427 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Conclusions 1. The IR spectra and Raman spectra of tetraacetoxysilane, methylacetoxysilanes, and their deuterosubstituted analogs were investigated. 2. The spectroscopic properties of the Si-C and Si-O bonds were discussed. 3. The dependence of the integral intensities of the IR bandsν (C=O) and the standard intensities of the Raman lines νs(Si-C) and νs(Si-O) on the number of equivalent groups in the molecules was considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00929644
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of organosilicon compounds on protein biosynthesis in granulation and fibrous tissue (1979)
    Springer
    Bulletin of experimental biology and medicine 87 (1979), S. 133-135 
    Details
    ISSN: 1573-8221
    Keywords: silatranes ; connective tissue ; protein synthesis ; collagen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The effect of propoxysilatrane (POS) on biosynthesis of the principal biopolymers of connective tissue was studied. Administration of POS as 0.5 and 2.0% ointments in lanolin-petrolatum base cause stimulation of cell proliferation in granulation and fibrous tissues developing in open skin defects in albino rats. Stimulation of cell proliferation in these animals was shown to be accompanied by increased biosynthesis of collagen and noncollagen proteins. In concentrations of 10−3–10−4 M, POS caused intensification of collagen biosynthesis (the formation of peptidebound nondialyzable hydroxyproline-14C) in vitro in chick embryonic cartilage tissue. The silatranes are thus biologically active substances with a regulatory influence on the course of repair and proliferation in connective tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00833969
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  • 3
    Electronic Resource
    Electronic Resource
    Atranes. I. A new method for synthesizing 1-alkyl and aryl silatranes (1965)
    Springer
    Chemistry of heterocyclic compounds 1 (1965), S. 33-37 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A new simple method for synthesizing organyl(2, 2′, 2″-aminotriethoxy)silanes R , named 1-organylsilatranes, is developed. It is based on splitting polyorganylsesquisiloxanes (RSiO1.5)x, polyorganylsiloxanols [RSiO1, 5−y(OH)2y]x, or polyorganylhydrosiloxanes (RSiHO)m with triethanolamine in the presence of an alkaline catalyst. Six compounds of the type mentioned were synthesized by this method, of which three (1-ethyl-, 1-isopropyl- and 3, 7-dimethyl-1-phenylsilatrane) were previously unknown, and certain of their properties are described. The resistance of 1-organylsilatranes to hydrolysis, their high dipole moments, and their inability to give ammonium compounds when treated with CH3I indicate that they contain an intramolecular coordinated link Si←N. 1-Arylsilatranes have a well-defined physiological activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01168915
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  • 4
    Electronic Resource
    Electronic Resource
    Atranes (1975)
    Springer
    Chemistry of heterocyclic compounds 11 (1975), S. 918-920 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The dipole moments of the Si(OCH2CH2)3N heterocyclic framework were calculated within the framework of an additive scheme by means of data from x-ray diffraction and conformational analysis of silatranes. The direction of the dipole moment of this fragment coincides with the “experimentally” determined value (from nitrogen to silicon), and its magnitude is ∼3 D. The dipole moment of the Si ← N coordinate bond was estimated to be 2.2 D, which corresponds to charge transfer from the nitrogen atom to the silicon atom (to the extent of 0.2 e). These results refute the existing concepts of the exceptionally high polarity of the transannular Si ← N bond in silatranes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00470490
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  • 5
    Electronic Resource
    Electronic Resource
    Atranes (1969)
    Springer
    Chemistry of heterocyclic compounds 5 (1969), S. 34-38 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Silatrane, in the presence of the corresponding sodium alkoxide of phenoxide readily reacts with alcohols and phenols with the liberation of hydrogen and the formation of 1-alkoxy- or 1-aryloxyatranes, . Depending on the nature of the alcohol or phenol, the rate of the reaction falls in the following sequence: p-CH3OC6H4OH 〉 p-(CH3)3CC6H4OH = n-C4H9OH = = n-C5H11OH 〉 i-C4H9OH 〉 s-C4H9OH 〉 p-CH3C6H4OH 〉 C6H5OH 〉 〉 p-ClC6H4OH 〉 t-C4H9OH 〉 p-O2NC6H4OH 〉 C6F5OH. The rate of the dehydrocondensation reaction of hydrosilanes with alcohols rises in the sequence . In the presence of ZnCl2 as catalyst, the dehydrocondensation reaction of silatrane with alcohols takes place considerably more slowly and does not go to completion. The formation of 1-organyloxysilatranes from silatrane and alcohols does not take place in the presence of H2PtCl6 or in the absence of catalysts. Using the dehydrocondensation reaction, twelve 1-organyloxysilatranes have been synthesized, two of which were previously unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01031757
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  • 6
    Electronic Resource
    Electronic Resource
    Atranes (1969)
    Springer
    Chemistry of heterocyclic compounds 5 (1969), S. 332-334 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The dipole moments of 12 Si-substituted Silatranes have been determined in chloroform and ethyl acetate. We have followed the electronic influence of silicon atom substituents on the dipole moment of the Silatranes, taking into account the presence of the Si←N transannular bond in them. A hypothesis has been put forward on the formation by chloroform of a hydrogen bond with the Silatranes (the oxygen atoms act as the donor centers), A study of the IR spectra of the Silatranes in paraffin oil and in chloroform has shown that in CHCl3 the frequencies corresponding to the asymmetric stretching vibrations of the Si-O bond increase by 15–30 cm−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00471137
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  • 7
    Electronic Resource
    Electronic Resource
    Crystal and molecular structure of 1-methoxy-2-carbasilatrane (1977)
    Springer
    Journal of structural chemistry 18 (1977), S. 268-271 
    Details
    ISSN: 1573-8779
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00753974
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  • 8
    Electronic Resource
    Electronic Resource
    Molecular structure of 9-methyl-2,2,3,3-tetrakis, (trifluoromethyl)-1,4,6,12-tetraoxa-9-aza-5-silaspiro [4,7]dodecane (1984)
    Springer
    Journal of structural chemistry 25 (1984), S. 147-149 
    Details
    ISSN: 1573-8779
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00808571
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  • 9
    Electronic Resource
    Electronic Resource
    Atranes (1969)
    Springer
    Chemistry of heterocyclic compounds 5 (1969), S. 335-338 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The kinetics of the hydrolysis of 15 1-alkyl-, 1-alkoxy- and 1-hydrosilatranes in an aqueous medium has been studied. The hydrolysis reaction is described by a first-order kinetic equation. 1-Hydrosilatrane is hydrolyzed most readily and 1-isopropyl- and 1-tert-butoxysilatranes with the greatest difficulty. A correlation has been drawn up of the logarithms of the rate constants of the hydrolysis of the silatranes and the σ* constants of the substituents, the influence of the latter on the reaction has been discussed, and a scheme for its mechanism has been put forward.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00471138
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  • 10
    Electronic Resource
    Electronic Resource
    Atranes (1972)
    Springer
    Chemistry of heterocyclic compounds 5 (1972), S. 721-722 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The UV absorption spectra in the 1800–2400 Å region of 1-alkylsilatranes and 1-alkylgermatranes have been studied, confirming the presence of Si←N and Ge←N bonds, respectively, in these compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00475839
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