- NITROGEN-CONTAINING ORGANOSILICON COMPOUNDS. 150. SYNTHESIS AND CHROMATOGRAPHIC AND 1H, 13C, 15N, AND 29Si NMR SPECTROSCOPIC INVESTIGATION OF SUBSTITUTED (PIPERIDINOALKYL)SILANES
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Substituted (piperidinoalkyl)silanes were synthesized and investigated by means of multinuclear NMR spectroscopy and GLC.The data obtained indicate an additional N-Si interaction in α-aminomethylsilanes that depends substantially on the properties of the substituents attached to the silicon atom.The effect of the R1R2R3Si substituent on the capacity of the nitrogen atom for intermolecular interactions is not restricted to steric effects but also has electronic character.
- Lukevits, E.,Sleiksha, I.,Liepin'sh, E.,Shats-ts, V. D.,Zitsmane, I.,Purvinya, A.
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p. 1319 - 1327
(2007/10/02)
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- Process for the preparation of organoalkoxysilanes
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An improvement in a process for the esterification of a organochlorosilane by feeding alcohol into a chlorosilane maintained within a reaction zone without said alcohol contacting said chlorosilane in the gas phase wherein the esterification is performed stepwise with extraction of hydrogen chloride which has developed, the improvement which comprises employing in at least a final esterification step an organochlorosilane of the formula wherein R represents an optionally halogen-substituted alkyl radical which can also contain an oxygen or sulfur atom in the chain, or a halogen or a NO2 group or a protected phenolic group containing aryl radical, a equals 0, 1, or 2, b equals 1 or 2, and a+b amounts to a maximum of 3, said final esterification step being performed with the addition of heat.
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