Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximides
    11.
    发明授权
    Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximides 失效
    N-取代-1-环己烯-1,2-二甲酰亚胺热解

    公开(公告)号:US4233218A

    公开(公告)日:1980-11-11

    申请号:US76708

    申请日:1979-09-18

    申请人: Raymond L. Cobb

    发明人: Raymond L. Cobb

    IPC分类号: C07D487/04 C07D487/10

    CPC分类号: C07D487/04 C07D487/10

    摘要: Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximide gives N,N'-substituted-pyromellitdiimides. Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximide in the presence of N-substituted maleimides produces N,N'-substituted-3,4,5,6-tetrahydropyromellitdiimide and the Diels-Alder dimer of N-substituted-1,3-butadiene-2,3-dicarboximide.

    摘要翻译: N-取代-1-环己烯-1,2-二甲酰亚胺热解得到N,N'-取代的苯并二叠氮化物。 在N-取代的马来酰亚胺存在下,N-取代-1-环己烯-1,2-二甲酰亚胺的热解产生N,N'-取代的3,4,5,6-四氢吡喃二酰亚胺和N-取代的Diels-Alder二聚体 -1,3-丁二烯-2,3-二甲酰亚胺。

    Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximides
    12.
    发明授权
    Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximides 失效
    N-取代-1-环己烯-1,2-二甲酰亚胺热解

    公开(公告)号:US4193924A

    公开(公告)日:1980-03-18

    申请号:US935201

    申请日:1978-08-21

    申请人: Raymond L. Cobb

    发明人: Raymond L. Cobb

    摘要: Pyrolysis of N-substituted-1-cylohexene-1,2-dicarboximide gives N,N'-substituted-pyromellitdiimides. Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximide in the presence of N-substituted maleimides produces N,N'-substituted-3,4,5,6-tetrahydropyromellitdiimide and the Diels-Alder dimer of N-substituted-1,3-butadiene-2,3-dicarboximide.

    摘要翻译: N-取代-1-环己烯-1,2-二甲酰亚胺热解得到N,N'-取代的吡喃并二酰亚胺。 在N-取代的马来酰亚胺存在下,N-取代-1-环己烯-1,2-二甲酰亚胺的热解产生N,N'-取代的3,4,5,6-四氢吡喃二酰亚胺和N-取代的Diels-Alder二聚体 -1,3-丁二烯-2,3-二甲酰亚胺。

    3,4,5,6-Tetrahydropyromellitdiimides
    13.
    发明授权
    3,4,5,6-Tetrahydropyromellitdiimides 失效
    3,4,5,6-四氢吡喃二酰亚胺

    公开(公告)号:US4163014A

    公开(公告)日:1979-07-31

    申请号:US935195

    申请日:1978-08-21

    申请人: Raymond L. Cobb

    发明人: Raymond L. Cobb

    摘要: Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximide gives N,N'-substituted-pyromellitdiimides. Pyrolysis of N-substituted-1-cyclohexene-1,2-dicarboximide in the presence of N-substituted maleimides produces N,N'-substituted-3,4,5,6-tetrahydropyromellitdiimide and the Diels-Alder dimer of N-substituted-1,3-butadiene-2,3-dicarboximide.

    摘要翻译: N-取代-1-环己烯-1,2-二甲酰亚胺热解得到N,N'-取代的苯并二叠氮化物。 在N-取代的马来酰亚胺存在下,N-取代-1-环己烯-1,2-二甲酰亚胺的热解产生N,N'-取代的3,4,5,6-四氢吡喃二酰亚胺和N-取代的Diels-Alder二聚体 -1,3-丁二烯-2,3-二甲酰亚胺。

    Conversion of lactams to alkenenitriles
    16.
    发明授权
    Conversion of lactams to alkenenitriles 失效
    内酰胺转化成烯腈

    公开(公告)号:US3956356A

    公开(公告)日:1976-05-11

    申请号:US78753

    申请日:1970-10-07

    申请人: Raymond L. Cobb

    发明人: Raymond L. Cobb

    IPC分类号: C07C120/10

    CPC分类号: C07C255/00

    摘要: A process is provided for the conversion of lactams to the corresponding aminonitriles and alkenenitriles comprising contacting the lactam with ammonia in the presence of a catalyst in a first reaction zone to form the corresponding aminonitrile and a byproduct polymeric material, and contacting the byproduct in the presence of gamma-alumina, a second catalyst, in a second reaction zone to form the corresponding isomeric alkenenitriles. The aminonitrile and the alkenenitriles are both recovered as products of the process.

    摘要翻译: 提供了将内酰胺转化为相应的氨基腈和烯化腈的方法,包括在第一反应区中在催化剂存在下使内酰胺与氨接触以形成相应的氨基腈和副产物聚合物材料,并在存在下使副产物接触 的γ-氧化铝,第二催化剂,在第二反应区中形成相应的异构烯化腈。 氨基腈和亚苄腈都作为该方法的产物回收。

    Process for preparing 4,4'-difluorobiphenyl
    17.
    发明授权
    Process for preparing 4,4'-difluorobiphenyl 失效
    制备4,4'-二氟联苯的方法

    公开(公告)号:US4956507A

    公开(公告)日:1990-09-11

    申请号:US431244

    申请日:1989-11-03

    IPC分类号: C07C17/26

    CPC分类号: C07C17/263 C07C17/2632

    摘要: An improved process for preparing high yields of 4,4'-difluorobiphenyl comprised of reacting a p-halofluorobenzene Grignard reagent with a p-halofluorobenzene coupling reagent in the presence of a palladium chloride triphenylphosphine catalyst.

    摘要翻译: 一种用于制备高产率的4,4'-二氟联苯的改进方法,其包括在氯化钯三苯基膦催化剂存在下使对氟氟苯格氏试剂与对 - 氟氟苯偶联剂反应。

    Preparation of 1,4-dichlorobenzene
    18.
    发明授权
    Preparation of 1,4-dichlorobenzene 失效
    制备1,4-二氯苯

    公开(公告)号:US4766103A

    公开(公告)日:1988-08-23

    申请号:US106760

    申请日:1987-10-08

    申请人: Raymond L. Cobb

    发明人: Raymond L. Cobb

    摘要: 1,2-dichlorobenzene is isomerized to 1,4-dichlorobenzene in the presence of a catalyst comprising (a) at least one of AlCl.sub.3 and AlBr.sub.3 and (b) at least one of iodine, alkaline earth metal halides and sulfates and lanthanide halides. Benzene and/or dichlorobenzene is chlorinated with free chlorine in the presence of a catalyst composition comprising (a) at least one suitable metal halide (preferably AlCl.sub.3, SbCl.sub.5 or FeCl.sub.3) and (b) free iodine and/or at least one organic iodo-compound (preferably methyl iodide of p-iodochlorobenzene), so as to obtain a reaction product comprising 1,4-dichlorobenzene. A preferred catalyst composition comprises (a) at least one of AlCl.sub.3 and AlBr.sub.3, (b) free iodine and (c) at least one of alkaline earth metal halides, alkaline earth metal sulfates and lanthanide halides.

    摘要翻译: 在包含(a)AlCl 3和AlBr 3中的至少一种和(b)碘,碱土金属卤化物和硫酸盐和镧系元素卤化物中的至少一种的催化剂存在下将1,2-二氯苯异构化成1,4-二氯苯。 在含有(a)至少一种合适的金属卤化物(优选AlCl 3,SbCl 5或FeCl 3)和(b)游离碘和/或至少一种有机碘化物的催化剂组合物存在下,苯和/或二氯苯用游离氯进行氯化, 化合物(优选对碘氯苯的碘甲烷),得到含有1,4-二氯苯的反应产物。 优选的催化剂组合物包含(a)AlCl 3和AlBr 3中的至少一种,(b)游离碘和(c)碱土金属卤化物,碱土金属硫酸盐和镧系元素卤化物中的至少一种。

    Process for making tert-butyltoluenes
    20.
    发明授权
    Process for making tert-butyltoluenes 失效
    制备叔丁基甲苯的方法

    公开(公告)号:US4334115A

    公开(公告)日:1982-06-08

    申请号:US274982

    申请日:1981-06-18

    申请人: Raymond L. Cobb

    发明人: Raymond L. Cobb

    IPC分类号: C07C2/70

    CPC分类号: C07C2/70 C07C2527/1206

    摘要: A process for obtaining at least one tert-butyltoluene comprising reacting isobutylene and isobutane in the presence of hydrogen fluoride and then separating said toluene from the hydrocarbon product.

    摘要翻译: 一种获得至少一种叔丁基甲苯的方法,包括在氟化氢存在下使异丁烯和异丁烷反应,然后从烃产物中分离出所述甲苯。