F. Huppmann, M. Noltemeyer, A. Meller
Dec 13, 1994
Citations
0
Influential Citations
14
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Subvalent compounds of silicon have been prepared from dichloro-bis(diethylamino)silane, dichloro-bis(2,6-dimethylpiperidino) silane and dichloro(diphenyl)silane with NaK 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 CH 3 groups or CH 2 bridges by insertion of (R 2 N) 2 Si into a CH bond, thus giving monosilanes RSi(NR′ 2 ) 2 H. Secondary products include disilanes R[Si(NEt 2 ) 2 ] 2 H and benzo[d]-1,3-dihydro-1,2-disiloles. Products of the thermal reaction of Ph 2 CHSi(NEt 2 ) 2 H ( XVI ), and the reaction of XVI with Ph 2 Si are consistent with the formulation of the intermediates as silylenes. Most compounds are characterized by NMR( 1 H, 13 C and 29 Si) 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 (Ph 2 CH) 2 Si(NEt 2 ) 2 ( XVII ) and [Ph 2 (Et 2 N)Si] 2 ( XXXI ).