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

    2025-03-17

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


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

    1. ?????? ??
      1) ????????????????????????????? ????????????????? ??? H2O2 ??????????????????????????? ?????????????????????????? peracetic ?

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

    3. 3) ????????? ????????????????????????????????????????????????????????????????? 2) ?????????????? pH ??? 6.0-7.0 ? ????????????????????????????????? ??????????????????????????? ???????????? ??????????? pH ?? 6.5-7.0 ????????????? precipitate β - hydroxy - β - methylbutyrate calcium ? ???????????????????????????????