中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
三[2-(2,8,9-三氧杂-5-氮杂-1-硅杂双环[3.3.3]十一碳-1-基氧基)乙基]胺 | tris(silatranyloxyethyl)amine | 29167-65-5 | C24H48N4O12Si3 | 668.921 |
2,8,9-三氧杂-5-氮杂-1-硅杂双环[3.3.3]十一烷 | silatrane | 283-60-3 | C6H13NO3Si | 175.26 |
—— | 1-iodosilatrane | 33446-83-2 | C6H12INO3Si | 301.156 |
A novel route to tetraethoxysilane and other silicon alkoxides is described, from amorphous silica (SiO2.nH2O) as the raw material. The reaction of amorphous silica with triethanolamine is enhanced by using an alkali metal hydroxide catalyst, to form a range of triethanolamine-substituted silatrane species. These can undergo alkoxide exchange in acidic alcohols to form alkoxysilatranes, tetraalkoxysilanes, hexaalkoxydisiloxanes and higher siloxanes. Reaction of triethanolamine-substituted silatranes with acetic anhydride produces acetoxysilatrane. Products were identified by multinuclear (1H, 13C and 29Si) magnetic resonance spectroscopy, electrospray mass spectrometry or high-resolution gas chromatography electron impact mass spectrometry.