15730-66-2Relevant academic research and scientific papers
Reaktionen subvalenter Verbindungen des Siliciums mit alkylierten Aromaten
Huppmann, Frank,Noltemeyer, Mathias,Meller, Anton
, p. 217 - 228 (1994)
Subvalent compounds of silicon have been prepared from dichloro-bis(diethylamino)silane, dichloro-bis(2,6-dimethylpiperidino)silane and dichloro(diphenyl)silane with Na-K alloy in hexane or hexane-dimethoxyethane containing monomethylbenzenes, dimethylbenzenes, trimethylbenzenes, tetramethylbenzenes, pentamethylbenzenes and hexamethylbenzenes, 4-ethylmethylbenzene, diphenylmethane, bibenzyl, 9,10-dihydroanthracene, 1- and 2-methylnaphthalene and bis(diethylamino)(diphenylmethyl)silane.Reactions primarily take place on one of the CH3 groups or CH2 bridges by insertion of (R2N)2Si into a CH bond, thus giving monosilanes RSi(NR'2)2H.Secondary products include disilanes R2H and benzo-1,3-dihydro-1,2-disiloles.Products of the thermal reaction of Ph2CH-Si(NEt2)2H (XVI), and the reaction of XVI with Ph2Si are consistent with the formulation of the intermediates as silylenes.Most compounds are characterized by NMR (1H, 13C and 29Si) and mass spectra; some have been identified by high resolution mass spectroscopy and (or) characteristic signals in their NMR spectra.X-ray structure analyses are provided for (Ph2CH)2Si(NEt2)2 (XVII) and 2 (XXXI).
Reaktionen subvalenter Verbindungen des Siliciums mit Benzol und mit Biphenyl
Huppmann, Frank,Maringgele, Walter,Kottke, Thomas,Meller, Anton
, p. 35 - 44 (2007/10/02)
Subvalent species of silicon have been generated by the dehalogenation of dichloro-bis(2,6-dimethyl-piperidino)silane (I), dichloro-bis(diethylamino)silane and dichloro(diisopropylamino))methylsilane (VI) with Na/K alloy in hexane containing benzene or biphenyl.From the reaction mixtures products formed by insertion into CH bonds of the aromatic compounds, have been isolated or detected as the aryl substituted aminosilanes (II, IV, VII and IX) and the bis(aminosilanyl)phenylenes (V and VIII).Futhermore benzo-1,3-dihydro-1,2,3-trisiloles (III, IX and XII) were formed upon 1,2-substitution of the aromatic rings.Additional products are tris(diethylamino)silane (B) and the 1,3-diphenyltrisilane derivative X.Compounds I, II, III, VI, XI and XII were characterized by their elemental analyses and spectroscopic data (MS, NMR: 1H, 13C, 29Si).Compounds IV, V, VII, VIII, IX and X have been detected by MS and in part characterized by NMR and IR data.An X-ray structure analysis has been performed of I.
