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Synthesis of organofunctional silanes with sterically hindered substituents at silicon atoms

Tipo de material: TextoTextoSeries ; Applied Organometallic Chemistry, 15(8), p.649-657, 2001Trabajos contenidos:
  • Guliski,J
  • Maciejewski,H
  • Dbek,I
  • Zaborski,M
Tema(s): Recursos en línea: Resumen: Organofunctional silanes with more sterically hindered substituents at the silicon atom than the typical methoxy (ethoxy)group have lately been frequently used as silane coupling agents, in polymer coupling systems, sol-gel processes and also as interpenetrating polymer network substrates. New and very efficient synthetic ways leading to organofunctional silanes of the above type with methacryl, amine, chloro and isocyanato functional groups are proposed here. Catalytic transesterification and/or alcoholysis of chloropropyltrialkoxysilanes followed by­nucleophilic substitution has been employed.
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Organofunctional silanes with more sterically hindered substituents at the silicon atom than the typical methoxy (ethoxy)group have lately been frequently used as silane coupling agents, in polymer coupling systems, sol-gel processes and also as interpenetrating polymer network substrates. New and very efficient synthetic ways leading to organofunctional silanes of the above type with methacryl, amine, chloro and isocyanato functional groups are proposed here. Catalytic transesterification and/or alcoholysis of chloropropyltrialkoxysilanes followed by­nucleophilic substitution has been employed.

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