Nitrogen-containing organisilicon compounds XLIX. Sysnthesis and insect repellent properties of Si-substituted (amenomethyl) silanes (CH3)n(RO)3−nSiCH2NR′R″
作者:É. Lukevits、V. P. Dremova、L. I. Simchenko、M. G. Voronkov
DOI:10.1007/bf00761187
日期:1974.10
TZSCHACH, A.;UHLIG, W.;KELLNER, K., J. ORGANOMET. CHEM., 1984, 266, N 1, 17-23
作者:TZSCHACH, A.、UHLIG, W.、KELLNER, K.
DOI:——
日期:——
NMR and Quantum-Chemical Studies of Electrostatically Stabilized 1-(<i>N</i>,<i>N</i>-Substituted-aminiomethyl)spirobi[3-oxo(2,5-dioxa-1-silacyclopentan)]ates (ES-Silanates)
X-ray, and quantum-chemical methods. The free activation parameters for the inversion of “ammonium-amine nitrogen” and the chirality change at the pentacoordinated silicon were determined by dynamic NMR spectroscopy. The latter proceeds via the dissociation of SiO bonds. The results were confirmed by quantum-chemical calculations, the experimental observation of cross-peaks in 2D-EXSY NMR spectra, and
Synthese und reaktionsverhalten von (dialkylaminomethyl)chlorsilanen und -stannanen
作者:A. Tzschach、W. Uhlig、K. Kellner
DOI:10.1016/0022-328x(84)80105-9
日期:1984.4
(Dialkylaminomethyl)chlorosilanes have been obtained by the reaction of trichlorosilane with bis(dimethylamino)methane. The corresponding stannanes have been prepared by the addition of methyleneimmonium halides to SnCl2. In the silicon compounds a covalent SiCH2N bond is observed, while the tin compounds have ionic structures. Reactions of the new compounds are described.