Conversion of non-alpha-tocopherols to alpha-tocopherols
    1.
    发明授权
    Conversion of non-alpha-tocopherols to alpha-tocopherols 失效
    非α-生育酚转化成α-生育酚

    公开(公告)号:US4239691A

    公开(公告)日:1980-12-16

    申请号:US45555

    申请日:1979-06-04

    IPC分类号: C07D311/72

    CPC分类号: C07D311/72

    摘要: A process for producing alpha-tocopherol from non-alpha-tocopherols comprising reacting the tocopherol with formaldehyde, carrying out the reaction at a temperature of at least about 175.degree. C. in the presence of a catalytic amount of an acidic ion exchange resin and subjecting the reaction mixture to catalytic hydrogenation.

    摘要翻译: 一种从非α-生育酚生产α-生育酚的方法,包括使生育酚与甲醛反应,在催化量的酸性离子交换树脂存在下,在至少约175℃的温度下进行反应, 反应混合物进行催化氢化。

    Process for dehydrogenation of sterols to produce .DELTA..sup.4
-3-ketosteroids (II)
    2.
    发明授权
    Process for dehydrogenation of sterols to produce .DELTA..sup.4 -3-ketosteroids (II) 失效
    甾醇脱氢生产DELTA 4-3-酮类固醇的方法(II)

    公开(公告)号:US4226786A

    公开(公告)日:1980-10-07

    申请号:US81957

    申请日:1979-10-04

    IPC分类号: C07J9/00

    CPC分类号: C07J9/00

    摘要: This invention relates to the dehydrogenation of a 3-.beta.-hydroxy steroid or a mixture of soy sterols to form the corresponding mixture of .DELTA..sup.4 -3-keto derivatives of phytosterols, the improvement which comprises dehydrogenation of the steroid or mixture of sterols using a supported nickel catalyst and carrying out the dehydrogenation in the presence of at least two chemically different hydrogen acceptors. One such process uses a supported nickel catalyst and a dialkyl ketone, such as methyl ethyl ketone, and an olefin, such as 1-hexene, as the two different hydrogen acceptors.

    摘要翻译: 本发明涉及3β-羟基类固醇或大豆固醇的混合物的脱氢,以形成植物甾醇的DELTA 4-3-酮衍生物的相应混合物,其改进包括用类固醇或甾醇混合物脱氢 在至少两种化学上不同的氢受体存在下进行脱氢。 一种这样的方法使用负载的镍催化剂和二烷基酮,例如甲基乙基酮,和烯烃如1-己烯作为两种不同的氢受体。

    Thermosetting coating compositions
    3.
    发明授权
    Thermosetting coating compositions 失效
    热固性涂料组合物

    公开(公告)号:US5466863A

    公开(公告)日:1995-11-14

    申请号:US384094

    申请日:1995-02-06

    IPC分类号: C07C69/716 C07C59/305

    CPC分类号: C07C69/716

    摘要: Provided are 3-oxoadipate esters of certain polyols which are useful as crosslinkers in thermosetting coating compositions. Also provided are such thermosetting compositions comprised of a curable hydroxyl-functional polymer such as a polyester or acrylic and the crosslinkers of the present invention. Such compositions offer a significant improvement in curing temperature.

    摘要翻译: 提供可用作热固性涂料组合物中的交联剂的某些多元醇的3-氧代己二酸酯。 还提供了由可固化的羟基官能聚合物如聚酯或丙烯酸和本发明的交联剂组成的热固性组合物。 这样的组合物提供了固化温度的显着改进。

    Trisubstituted piperazin-2,5-diones
    4.
    发明授权
    Trisubstituted piperazin-2,5-diones 失效
    三取代哌嗪-2,5-二酮

    公开(公告)号:US5214145A

    公开(公告)日:1993-05-25

    申请号:US647618

    申请日:1991-01-28

    IPC分类号: C07D241/08

    CPC分类号: C07D241/08

    摘要: Disclosed is a process for preparation of an amino acid, such as phenylalanine, with a high degree of optical purity. The process makes use of the same amino acid as a chiral template.

    摘要翻译: 公开了具有高光学纯度的氨基酸如苯丙氨酸的制备方法。 该方法利用与手性模板相同的氨基酸。

    Process for dehydrogenation of sterols to produce delta 4-3-ketosteroids
    5.
    发明授权
    Process for dehydrogenation of sterols to produce delta 4-3-ketosteroids 失效
    甾醇脱氢以产生δ4-3-酮类固醇的方法

    公开(公告)号:US4235791A

    公开(公告)日:1980-11-25

    申请号:US81956

    申请日:1979-10-04

    申请人: Charles H. Foster

    发明人: Charles H. Foster

    IPC分类号: C07J9/00

    CPC分类号: C07J9/00

    摘要: This invention relates to the dehydrogenation of a 3-.beta.-hydroxy steroid or a mixture of soy sterols to form the corresponding mixture of .DELTA..sup.4 -3-keto derivatives of phytosterols, the improvement which comprises dehydrogenating the steroid or mixture of sterols using an activated non-pyrophoric nickel catalyst and carrying out the oxidation in the presence of a diaryl ketone. One such process uses a non-pyrophoric Raney nickel type catalyst and a diaryl ketone, such as benzophenone as a hydrogen acceptor.

    摘要翻译: 本发明涉及3β-羟基类固醇或大豆固醇的混合物的脱氢,以形成植物甾醇的DELTA 4-3-酮衍生物的相应混合物,其改进包括使用活化的 非自燃镍催化剂,并在二芳基酮存在下进行氧化。 一种这样的方法使用非自燃性阮内镍型催化剂和二芳基酮,例如二苯甲酮作为氢受体。

    Thermosetting coating compositions
    7.
    发明授权
    Thermosetting coating compositions 失效
    热固性涂料组合物

    公开(公告)号:US5306567A

    公开(公告)日:1994-04-26

    申请号:US34960

    申请日:1993-03-22

    摘要: Provided are polyester resins containing hydroxy functionalized isophthalate ester moieties useful in coating compositions. The invention provides both solvent-borne as well as water-borne coating compositions comprised of the resins and a crosslinker such as a melamine-type crosslinker. Polyester resins of the present invention having a T.sub.8 of greater than about 50.degree. C. are useful in thermosetting powder coating compositions. The coatings thus provided possess excellent acid resistance, hardness, impact resistance, and stain resistance.

    摘要翻译: 提供含有用于涂料组合物的羟基官能化间苯二甲酸酯部分的聚酯树脂。 本发明提供了溶剂型以及由树脂和交联剂如三聚氰胺型交联剂组成的水性涂料组合物。 具有T8大于约50℃的本发明的聚酯树脂可用于热固性粉末涂料组合物中。 由此提供的涂层具有优异的耐酸性,硬度,耐冲击性和耐污染性。

    Process for separation of tocopherol homologues
    8.
    发明授权
    Process for separation of tocopherol homologues 失效
    分离生育酚同系物的方法

    公开(公告)号:US4480108A

    公开(公告)日:1984-10-30

    申请号:US519477

    申请日:1983-08-01

    申请人: Charles H. Foster

    发明人: Charles H. Foster

    IPC分类号: C07D311/72

    CPC分类号: C07D311/72

    摘要: A process for separating the various members of a tocopherol homologue mixture to obtain fractions of the separate tocopherol homologues. The isolation of the various tocopherol homologues is accomplished by selective deacylation of tocopheryl esters followed by separation of the esters from the free tocopherols.

    摘要翻译: 分离生育酚同系物混合物的各种成分以获得单独的生育酚同系物部分的方法。 各种生育酚同系物的分离是通过选择性去酰基化生物酯进行的,然后将酯与游离的生育酚分离。

    Dehydroformylation of steroidal aldehydes
    9.
    发明授权
    Dehydroformylation of steroidal aldehydes 失效
    甾体醛的脱氢甲酰化

    公开(公告)号:US4272444A

    公开(公告)日:1981-06-09

    申请号:US178043

    申请日:1980-08-14

    IPC分类号: C07J7/00 C07J13/00 C07J1/00

    CPC分类号: C07J7/0005 C07J13/007

    摘要: The invention relates to a process for dehydroformylation of dinorcholanaldehydes and dinorcholenaldehydes to form 17(20)-pregnenes or 20-pregnenes. The dehydroformylation is carried out using a noble metal catalyst, and preferably carried out in the presence of a hydrogen acceptor.

    摘要翻译: 本发明涉及二氢胆醛和二氢胆醛的脱氢甲酰化形成17(20) - 孕烯或20-孕烯的方法。 脱甲酰化使用贵金属催化剂进行,优选在氢受体存在下进行。

    Process for separation of tocopherol homologues (II)
    10.
    发明授权
    Process for separation of tocopherol homologues (II) 失效
    生育酚同系物分离方法(二)

    公开(公告)号:US4607111A

    公开(公告)日:1986-08-19

    申请号:US736904

    申请日:1985-05-22

    申请人: Charles H. Foster

    发明人: Charles H. Foster

    IPC分类号: C07D311/72

    CPC分类号: C07D311/72

    摘要: A process for separating the .alpha.-tocopherol homologues from the other ester members of a tocopherol homologue mixture. The isolation of the .alpha.-tocopherol homologue is accomplished by selective deacylation of a mixture of tocopheryl esters in the presence of a base catalyst followed by separation of the .alpha.-ester from the other free tocopherols.

    摘要翻译: 一种将α-生育酚同系物与生育酚同系物混合物的其它酯成分分离的方法。 α-生育酚同系物的分离通过在碱催化剂存在下选择性脱酰生育酚酯的混合物,然后将α-酯与其它游离的生育酚分离来完成。