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    ??????????????? HMB-Ca

    2025-03-17

    8b1220f5-7a27-494d-a895-148727ea35ef


    ?????? 1:
    ????????? 4-methyl-4-hydroxy-2-pentanone (diacetone alcohol) ??????????????????????, ????????????????, NaOBr aqueous solution ?????????????????????????? halogenated, ?????????????????????????????????? isobutanol. ????? HMB ????????????? isobutanol ???????????????? Ca (OH) 2 ??????????? β - hydroxy - β - methylbutyrate calcium. ?????????????????????????????????????????????????????????????????????????.

    1. ?????? 2:
      1) ?????????????????? acetic glacial, ?????????????, ??? H2O2, ?????????????????????????????, ???????????????? peracetic;

    2. 2) ????????????????????????????????? 1) ????????? diacetone, ????? methyl acetate ???? solvent ??????????????, ???????????????????????????????? 70 ℃. ??????????????????????????????????????? β - hydroxy - β - ????? methylbutyric;

    3. 3) ???????????????? hydroxide ?????????????????????????????????????????? 2) ???????? pH ???? 6.0-7.0. ?????????????????????, ????????????????????????. ????????????? chloride ?????????????, stir ??????????, ?????? pH ???? 6.5-7.0 ?????????????????? precipitate β - hydroxy - β - methylbutyrate ?????????. ???????????????????????????????????