Reduction of sulfonic acid to thiol
    21.
    发明授权
    Reduction of sulfonic acid to thiol 失效
    将磺酸还原成硫醇

    公开(公告)号:US4767884A

    公开(公告)日:1988-08-30

    申请号:US97881

    申请日:1987-09-17

    IPC分类号: C07C148/00

    CPC分类号: C07C319/02

    摘要: A sulfonic acid is reduced to a thiol by heating the acid under carbon monoxide pressure in the presence of a rhodium carbonyl catalyst.

    摘要翻译: 在羰基铑催化剂存在下,通过在一氧化碳压力下加热酸将磺酸还原成硫醇。

    Process for the formation of phosphonoalkylated amino acids
    22.
    发明授权
    Process for the formation of phosphonoalkylated amino acids 失效
    形成膦酰基烷基化氨基酸的方法

    公开(公告)号:US4661298A

    公开(公告)日:1987-04-28

    申请号:US528283

    申请日:1983-08-31

    IPC分类号: C07F9/38

    CPC分类号: C07F9/3813

    摘要: The reaction of amino acids and a haloalkylphosphonic acid to form the corresponding phosphonoalkylated amino acid is promoted by use of a catalytically effective amount of a polyamine catalyst which contains a sufficiently high concentration of amine nitrogen atoms to promote the reaction.

    摘要翻译: 通过使用含有足够高浓度的胺氮原子的催化有效量的多胺催化剂来促进氨基酸和卤代烷基膦酸形成相应的膦酰基烷基化氨基酸的反应,以促进反应。

    Preparation of amino acids from unsaturated hydantoins
    23.
    发明授权
    Preparation of amino acids from unsaturated hydantoins 失效
    从不饱和乙内酰脲制备氨基酸

    公开(公告)号:US4613691A

    公开(公告)日:1986-09-23

    申请号:US751581

    申请日:1985-07-08

    摘要: Amino acids can be easily prepared by reducing unsaturated hydantoins to the corresponding saturated hydantoins by hydrogenating the unsaturated hydantoin using either Raney Nickel catalyst in the presence of more than a stoichiometric amount of caustic or by using zinc and hydrochloric acid followed by hydrolyzing the resultant composition with at least 3 molar equivalents of an alkali metal hydroxide to produce a racemate of an alpha amino acid. The amino acid in suitable derivative form can then be resolved particularly using a two-phase solvent system. The residual isomer of the amino acid remaining after the resolution process can then be racemized using either pyridoxal-5-phosphate or an aliphatic acid in combination with an aldehyde or a ketone. By these procedures, it is possible to obtain high yields of amino acids.

    摘要翻译: 氨基酸可以容易地通过将不饱和乙内酰脲还原成相应的饱和乙内酰脲,通过使用阮内镍催化剂在不超过化学计量的苛性碱存在下氢化不饱和乙内酰脲,或者通过使用锌和盐酸,然后水解所得组合物, 至少3摩尔当量的碱金属氢氧化物以产生α氨基酸的外消旋体。 然后可以使用两相溶剂系统特别地分解合适的衍生物形式的氨基酸。 然后可以使用吡哆醛-5-磷酸或与醛或酮的组合的脂族酸,将拆分过程后残留的氨基酸的残余异构体外消旋化。 通过这些方法,可以获得高产率的氨基酸。

    One-step hydrogenation/esterification of benzyloxy phenoxy propanoic acid
    24.
    发明授权
    One-step hydrogenation/esterification of benzyloxy phenoxy propanoic acid 失效
    苄氧基苯氧基丙酸的一步氢化/酯化

    公开(公告)号:US4613677A

    公开(公告)日:1986-09-23

    申请号:US804963

    申请日:1985-12-05

    IPC分类号: C07C69/712 C07C69/76

    CPC分类号: C07C69/712

    摘要: The invention is directed to the one-step hydrogenation/esterification of arylmethyleneoxyaryloxy alkanoic acids to produce (hydroxyphenoxy) carboxylates. The process comprises the hydrogenation and esterification of the aryloxy alkanoic acid in the presence of a palladium hydrogenation catalyst and an acidic esterification catalyst preferably utilizing the alcohol for the esterification as the hydrogenation solvent. The acid serves the dual role of hydrogenation promoter and esterification catalyst.

    摘要翻译: 本发明涉及芳基亚甲基氧基芳氧基链烷酸的一步氢化/酯化以产生(羟基苯氧基)羧酸酯。 该方法包括在钯氢化催化剂和酸性酯化催化剂存在下芳氧基链烷酸的加氢和酯化,优选利用醇进行酯化作为氢化溶剂。 该酸用作加氢促进剂和酯化催化剂的双重作用。

    Phosphate ester recovery
    25.
    发明授权
    Phosphate ester recovery 失效
    磷酸酯回收

    公开(公告)号:US4532085A

    公开(公告)日:1985-07-30

    申请号:US511072

    申请日:1983-07-05

    IPC分类号: C07F9/02 C07F9/09

    CPC分类号: C07F9/025

    摘要: A method of recovering phosphate esters from the by-product residues derived from phosphate ester production is disclosed. The method comprises extracting the phosphate esters from the residue utilizing a hydrocarbon solvent.

    摘要翻译: 公开了从衍生自磷酸酯生产的副产物残余物中回收磷酸酯的方法。 该方法包括使用烃溶剂从残余物中提取磷酸酯。

    Meta-tertiary-butylphenyl diphenyl phosphate
    26.
    发明授权
    Meta-tertiary-butylphenyl diphenyl phosphate 失效
    甲基叔丁基苯基二苯基磷酸酯

    公开(公告)号:US4378320A

    公开(公告)日:1983-03-29

    申请号:US204967

    申请日:1980-11-07

    IPC分类号: C07F9/12 C08K5/523 C07F9/09

    CPC分类号: C07F9/12 C08K5/523

    摘要: Tertiary-butylphenyl diphenyl phosphate esters in which the nominal molar ratio of tertiary-butyl radicals to phenyl radicals ranges from about 1:5 to about 1:2, the meta-tertiary-butylphenyl content ranges from about 25% to about 100 % and the ortho-tertiary-butylphenyl content is less than about 50% are highly effective plasticizers for vinyl chloride polymer compositions.

    摘要翻译: 叔丁基苯基二苯基磷酸酯,其中叔丁基与苯基的标称摩尔比为约1:5至约1:2,间叔丁基苯基含量为约25%至约100%, 邻 - 叔丁基苯基含量低于约50%是用于氯乙烯聚合物组合物的高效增塑剂。

    Process for manufacturing substantially pure dialkyl
phosphorochloridothionate
    27.
    发明授权
    Process for manufacturing substantially pure dialkyl phosphorochloridothionate 失效
    用于制造基本上纯的二硫代磷酸硫代磷酸酯的方法

    公开(公告)号:US4185053A

    公开(公告)日:1980-01-22

    申请号:US838685

    申请日:1977-10-03

    IPC分类号: C07F9/20

    CPC分类号: C07F9/20

    摘要: A process for producing in high yields a substantially pure dialkyl phosphorochloridothionates. The process comprises chlorinating bis(phosphorothioic) sulfides, thioic acids, or salts thereof, distilling the reaction mixtures, contacting the distillate with a thioic acid or salt thereof, contacting the mixture with water and distilling the organic material after the water contacting.

    摘要翻译: 高产率生产基本上纯的二烷基硫代磷酸硫酸盐的方法。 该方法包括氯化双(硫代磷酸)硫化物,硫酸或其盐,蒸馏反应混合物,使馏出物与硫酸或其盐接触,使混合物与水接触并在水接触后蒸馏有机材料。