Abstract
The hydrolysis of silatranes of the
: type (R=alkyl, aryl) in the presence of HCl at 25°C is described by a second-order kinetic equation. The correlation dependence of the log k values on the σ *OR values makes it possible to divide the investigated compounds into two reaction series — 1-alkoxy- and 1-aryloxysilatranes. An investigation of the potentiometric curves and the change in the acid functions of the media during the hydrolysis of the silatranes made it possible to propose a scheme for the mechanism of this reaction. The linear dependence of the v values on [HCl] provides evidence that noncatylic hydrolysis of the silatranes practically does not occur under the investigated conditions. A salt effect is not manifested during the hydrolysis of the silatranes (at KCl concentrations from 0.05 to 0.25 mole/liter). The toxicity of the 1-aryloxysilatranes is basically reduced as their rate of hydrolytic cleavage increases.
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See [1] for communication XLI.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 35–39, January, 1975.
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Voronkov, M.G., Emel'yanov, I.S., Zelchan, G.I. et al. Atranes. Chem Heterocycl Compd 11, 28–31 (1975). https://doi.org/10.1007/BF00945265
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DOI: https://doi.org/10.1007/BF00945265