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    • 5. 发明申请
    • PROCESS FOR PREPARING SILOXY CARBOXYLATES
    • 制备苯氧基羧酸酯的方法
    • US20120157701A1
    • 2012-06-21
    • US13329947
    • 2011-12-19
    • Martin GärtnerJochen Petzoldt
    • Martin GärtnerJochen Petzoldt
    • C07F7/18
    • C07F7/0876
    • A process for preparing siloxy carboxylates is characterized by reaction of C2-C10-monocarboxylic acids with halosiloxanes of the general formula (I), Hal-(SiR2—O)x—SiR3  (I) in which Hal is the same or different and is fluorine, chlorine, bromine or iodine, R is hydrogen, C1-C10-alkyl or C6-C14-aryl and x is an integer from 1 to 20, to form hydrogen halide in the presence of an auxiliary base, in which the auxiliary base forms, with the hydrogen halide, a salt which forms two immiscible phases with the siloxy carboxylate or the solution of the siloxy carboxylate in a suitable solvent and is removed by a liquid-liquid separation. The process enables simple and economically viable preparation of siloxy carboxylates.
    • 制备甲硅烷氧基羧酸盐的方法的特征在于C2-C10-一元羧酸与通式(I)的卤代硅氧烷,Hal相同或不同的Hal-(SiR2-O)x-SiR3(I))反应, 氟,氯,溴或碘,R是氢,C 1 -C 10 - 烷基或C 6 -C 14 - 芳基,x是1至20的整数,在辅助碱的存在下形成卤化氢,其中辅助碱 与卤化氢形成与甲硅烷氧基羧酸酯或甲硅烷氧基羧酸酯在合适溶剂中的溶液形成两个不混溶相的盐,并通过液 - 液分离除去。 该方法使得能够简单且经济地制备甲硅烷氧基羧酸盐。