Synthesis of hydroxy sulfonic acids
    1.
    发明授权
    Synthesis of hydroxy sulfonic acids 失效
    羟基磺酸的合成

    公开(公告)号:US4987250A

    公开(公告)日:1991-01-22

    申请号:US299728

    申请日:1989-01-19

    IPC分类号: C07C303/16

    CPC分类号: C07C303/16

    摘要: Hydroxy sulfonic acids in general and isethionic acid (2-hydroxy ethyl sulfonic acid) in particular can be prepared at 99+% purity and good yields by the selective oxidation of a precursor hydroxy mercaptan with hydrogen peroxide. The resulting product is pure enough to be used directly in the synthesis of sulfo-acrylic esters which are finding considerable use as stabilizers in producing vinylidene chloride copolymers used for FDA approved packaging films.

    摘要翻译: 通常通过用过氧化氢选择性氧化前体羟基硫醇,通常可以制备羟基磺酸和羟乙磺酸(2-羟基乙基磺酸),其纯度为99 +%,产率高。 所得产物纯度足以直接用于磺基丙烯酸酯的合成中,其在制备用于FDA批准的包装膜的偏二氯乙烯共聚物中被认为可用作稳定剂。

    Synthesis of sulfonic acids and carboxylic acid ester derivatives thereof
    2.
    发明授权
    Synthesis of sulfonic acids and carboxylic acid ester derivatives thereof 失效
    磺酸及其羧酸酯衍生物的合成

    公开(公告)号:US4910330A

    公开(公告)日:1990-03-20

    申请号:US101146

    申请日:1987-09-25

    IPC分类号: C07C303/16

    CPC分类号: C07C303/16

    摘要: Hydroxy sulfonic acids in general and isethionic acid (2-hydroxy ethyl sulfonic acid) in particular can be prepared at 99+% purity and good yields by the selective oxidation of a precursor hydroxy mercaptan with hydrogen peroxide. The resulting product is pure enough to be used directly in the synthesis of sulfo-acrylic esters which are finding considerable use as stabilizers in producing vinylidene chloride copolymers used for FDA approved packaging films.

    摘要翻译: 通常通过用过氧化氢选择性氧化前体羟基硫醇,通常可以制备羟基磺酸和羟乙磺酸(2-羟基乙基磺酸),其纯度为99 +%,产率高。 所得产物纯度足以直接用于磺基丙烯酸酯的合成中,其在制备用于FDA批准的包装膜的偏二氯乙烯共聚物中被认为可用作稳定剂。