ATRANES. I. A NEW METHOD FOR SYNTHESIZING 1-ALKYL AND ARYL SILATRANES

A new simple method for synthesizing organyl(2, 2′, 2″-aminotriethoxy)silanes R , named 1-organylsilatranes, is developed. It is based on splitting polyorganylsesquisiloxanes (RSiO 1.5 ) x , polyorganylsiloxanols [RSiO 1, 5−y (OH) 2y ]x, or polyorganylhydrosiloxanes (RSiHO) m with triethanolamine in the presence of an alkaline catalyst. Six compounds of the type mentioned were synthesized by this method, of which three (1-ethyl-, 1-isopropyl- and 3, 7-dimethyl-1-phenylsilatrane) were previously unknown, and certain of their properties are described. The resistance of 1-organylsilatranes to hydrolysis, their high dipole moments, and their inability to give ammonium compounds when treated with CH 3 I indicate that they contain an intramolecular coordinated link Si←N. 1-Arylsilatranes have a well-defined physiological activity. Authors: M. G. Voronkov, G. I. Zelchan. English Translation in Chemistry of Heterocyclic Compounds , 1965, 1 (1), pp 33-37 http://link.springer.com/article/10.1007/BF01168915