3-Chlorporpyltrialkoxysilane – Schlüsselbausteine für die industrielle Herstellung organofunktionalisierter Silane und Polysiloxane sowie moderner Verbundmaterialien

Silicon Compounds, Organic

“…In the case of trichlorosilane it gives the desired chloropropylsilane with a selectivity up to ca. 83 % [123]. The formation and addition of propene, occurring as a side reaction, can be interpreted as ClÀH exchange.…”

“…The reaction with longchain amines such as octadecyldimethylamine [139] is of industrial importance because it leads to surface-fixable biocides (Section 6.2). Methylsubstituted quats, which are also accessible from alkylaminosilanes, such as the side products shown in Equation (60) (n ¼ 2, 3) act as ion exchangers and, if the chains are longer, also as phase-transfer catalysts [123].…”

“…Other interesting nitrogen compounds can be produced by nucleophilic substitution of chloropropylsilanes, including isocyanate, urethane, ureido [123], and imidazole derivatives. Some of these compounds can also be produced by hydrosilylation of the corresponding allyl precursors and further derivatization.…”

“…Since complete separation of the guanidinium salts is often difficult, addition of solvents or cleavage with alkylamines, which form liquid phases, has been proposed [123], [141]. The same mercapto compounds can also be produced by addition of H 2 S to the corresponding cyanoethylsilanes or by their reductive cleavage with H 2 ÀCoS x [142].…”

Chemie an starren Grenzflächen, 7 [1] Ausgewählte Beispiele der chemischen Grenzflächenmodifizierung von Aerosil / Chemistry at Rigid Surfaces, 7 [1] Selected Examples of the Chemical Surface Modification of Aerosil

“…Kürzlich haben U. Deschler, P. Kleinschmit und P. Pauster umfassend über Synthese und Anwendung funktionalisierter Trialkoxysilane berichtet [12]. In diesem Bericht wird u.a.…”