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    • 8. 发明申请
    • PREPARATION OF ALKYL (AMINO) DIALKOXYSILANES
    • 烷基(氨基)二烷基二氧化硅的制备
    • WO00042049A1
    • 2000-07-20
    • PCT/US1999/000947
    • 1999-01-13
    • C07F7/18C07F7/10
    • C07F7/1888C07F7/1868
    • Alkyl (amino) dialkoxysilanes are prepared by anhydrously reacting stoichiometric amounts of an alkoxysilane and an alkylaminomagnesium chloride in a reverse addition process. The alkylamino magnesium chloride is preferably prepared in situ by the reaction of a Grignard reagent (RMX) and an alkylamine in a suitable aprotic solvent, such as tetrahydrofuran. The "alkyl" substituent can be alkyl, arylalkyl or aryl. The reaction can be conducted in the temperature range of from 25 DEG C to 75 DEG C, without a catalyst, and the aprotic solvent is recovered for re-use in the process.
    • 烷基(氨基)二烷氧基硅烷通过在反向加成过程中使化学计量的烷氧基硅烷和烷基氨基氯化镁无水反应来制备。 烷基氨基氯化镁优选通过格氏试剂(RMX)和烷基胺在合适的非质子溶剂如四氢呋喃中的反应而原位制备。 “烷基”取代基可以是烷基,芳烷基或芳基。 该反应可在25℃至75℃的温度范围内进行,无需催化剂,非质子溶剂回收再利用。