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11 条记录 (耗时 0.013 秒)

    Preparation of compounds containing two conjugated double bonds cis-cis and cis-trans
    2.
    发明授权
    Preparation of compounds containing two conjugated double bonds cis-cis and cis-trans 失效
    含有两个共轭双键的顺式 - 顺式和顺式 - 反式的化合物的制备

    公开(公告)号：US4317905A

    公开(公告)日：1982-03-02

    申请号：US41064

    申请日：1979-05-21

    申请人： Pietro Massardo ,  Giorgio Cassani ,  Paolo Piccardi

    发明人： Pietro Massardo ,  Giorgio Cassani ,  Paolo Piccardi

    IPC分类号： B01J23/00 ,  B01J27/00 ,  B01J27/122 ,  B01J31/00 ,  B01J31/02 ,  C07B61/00 ,  C07C1/00 ,  C07C1/32 ,  C07C5/08 ,  C07C5/09 ,  C07C11/12 ,  C07C11/28 ,  C07C29/128 ,  C07C29/42 ,  C07C67/00 ,  C07C69/145 ,  C07D309/12 ,  C07C1/36 ,  C07C41/48 ,  C07C67/08 ,  C07C67/14

    CPC分类号： C07D309/12 ,  C07C1/326 ,  C07C11/12 ,  C07C29/128 ,  C07C29/42 ,  C07C67/14 ,  C07B2200/09 ,  Y02P20/55

    摘要： A process is disclosed for preparing aliphatic compounds containing two conjugated double bonds cis-cis or cis-trans, characterized in that a compound of the general formula ##STR1## (in which R is H, alkyl from C.sub.1 to C.sub.10, or OY in which Y is a protective group selected from the class consisting of tetrahydropyranyl and 1-ethoxyethyl; X is an ester function selected from the class consisting of the acetates) is reacted with an alkyl-magnesium halide of the general formula:Z--Mg--R.sup.1 (II)(in which Z is chlorine, bromine or iodine, and R.sup.1 is a C.sub.1 -C.sub.10 alkyl group, or a group (CH.sub.2).sub.n OY in which Y has the same meaning as in formula (I), and n is a number from 3 to 10) in the presence of Li.sub.2 CuCl.sub.4, CuCl, CuBr, or CuI at temperatures ranging from about -30.degree. to +10.degree. C. in the presence of ethyl ether or tetrahydrofuran as solvent, to obtain an aliphatic compound of the general formula:R--CH.sub.2 --C.tbd.C--CH.dbd.CH--CH.sub.2 R.sup.1 (III)in which the carbon atoms linked with the double bond carry two hydrogen atoms in cis position, and reducing the triple bond of (III) with lithium-aluminum hydride to produce the trans-cis compound, or reducing (III) with dialkylborane or catecholborane to produce the cis-cis compound.

    摘要翻译： 公开了一种制备含有两个共轭双键顺式或顺式 - 反式的脂族化合物的方法，其特征在于通式为（I）的化合物（其中R为H，C1至C10的烷基或 OY，其中Y是选自四氢吡喃基和1-乙氧基乙基的保护基; X是选自乙酸酯的酯官能团）与通式Z-Mg的烷基卤化镁反应 -R1（II）（其中Z为氯，溴或碘，R1为C1-C10烷基或Y为与式（Ⅰ）中相同含义的基团（CH 2）n OY），n为 在三乙胺或四氢呋喃作为溶剂的存在下，在约-30℃〜+ 10℃的温度范围内，在Li2CuCl4，CuCl，CuBr或CuI存在下，为3〜10的数，得到脂肪族化合物 其中与双键连接的碳原子携带两个氢原子的通式为：R-CH 2 -C 3 CON C-CH = CH-CH 2 R 1（III） （III）与三氢化铝锂的三键还原以产生反式顺式化合物，或用二烷基硼烷或儿茶酚硼烷还原（Ⅲ）以产生顺式 - 顺式化合物。

    Manufacture of alkene from alkane via boron esters
    4.
    发明授权
    Manufacture of alkene from alkane via boron esters 失效
    通过硼酸盐从阿拉尼亚制造阿尔肯

    公开(公告)号：US3622647A

    公开(公告)日：1971-11-23

    申请号：US3622647D

    申请日：1969-09-11

    申请人： TEXACO INC

    发明人： MCMAHON MATTHEW A ,  ARKELL ALFRED

    IPC分类号： C07C1/36 ,  C07C1/20 ,  C07B3/00 ,  C07F5/04

    CPC分类号： C07C1/36 ,  Y10S585/905 ,  Y10S585/931 ,  C07C13/00 ,  C07C11/02

    摘要： Manufacture of alkene from alkane, said alkene of an equal number of carbons as its alkane precursor, comprising contacting alkane with oxygen in the presence of a boric acid at an elevated temperature, spearating the resultant alkylborate esters from the reaction product, pyrolyzing said alkylborates in an inert atmosphere, preferably in the presence of a methanol or trimethylborate and recovering the formed alkene from the pyrolysis mixture, said recovery preferably including contacting said formed alkene with silica gel.

    Oxidative coupling of olefins and aromatics using a rhodium catalyst and a copper(II) redox agent
    9.
    发明授权
    Oxidative coupling of olefins and aromatics using a rhodium catalyst and a copper(II) redox agent 失效
    使用铑催化剂和铜（II）氧化还原剂进行烯烃和芳族化合物的氧化偶联

    公开(公告)号：US6127590A

    公开(公告)日：2000-10-03

    申请号：US277327

    申请日：1999-03-26

    申请人： Douglas Taube ,  Roy Periana ,  Takaya Matsumoto

    发明人： Douglas Taube ,  Roy Periana ,  Takaya Matsumoto

    IPC分类号： B01J31/20 ,  C07B37/00 ,  C07B61/00 ,  C07C2/84 ,  C07C15/46 ,  C07C1/207 ,  C07C1/36 ,  C07C15/40 ,  C07G1/20

    CPC分类号： C07B37/00 ,  C07C2/84 ,  C07C2531/22

    摘要： This invention relates generally to the field of chemical synthesis, and more specifically, to the field of oxidative coupling of olefinic compounds and aromatic compounds, to produce olefinically substituted aromatic compounds. More particularly, this invention relates to methods for oxidative coupling of olefinic compounds and aromatic compounds which employ a rhodium(III) acetylacetonate catalyst and a copper(II) redox agent in a reaction medium which does not comprise a carboxylic acid component. In one embodiment, this invention pertains to methods for the preparation of styrene by the oxidative coupling of ethylene (an olefinic compound) and benzene (an aromatic compound), in the presence of Rh(acac).sub.2 Cl(H.sub.2 O), as catalyst, and Cu(II)(CH.sub.3 COO).sub.2, as copper(II) redox agent, in which benzene is both a reactant and the reaction medium.

    摘要翻译： 本发明一般涉及化学合成领域，更具体地涉及烯属化合物和芳族化合物的氧化偶合领域，以产生烯属取代的芳族化合物。 更具体地说，本发明涉及在不含有羧酸成分的反应介质中使用乙酰丙酮酸铑（III）催化剂和铜（II）氧化还原剂的烯属化合物和芳族化合物的氧化偶合的方法。 在一个实施方案中，本发明涉及在Rh（acac）2 Cl（H 2 O）作为催化剂存在下通过乙烯（烯烃化合物）和苯（芳族化合物）的氧化偶联制备苯乙烯的方法，以及 Cu（II）（CH 3 COO）2，作为铜（II）氧化还原剂，其中苯均为反应物和反应介质。

    Cracking process for styrene
    10.
    发明授权
    Cracking process for styrene 失效
    苯乙烯的开裂过程

    公开(公告)号：US4250344A

    公开(公告)日：1981-02-10

    申请号：US954330

    申请日：1978-10-25

    申请人： Martin B. Sherwin ,  Jimmy Y. Peress ,  Kenneth J. Gwozdz

    发明人： Martin B. Sherwin ,  Jimmy Y. Peress ,  Kenneth J. Gwozdz

    IPC分类号： C07C1/36 ,  C07C1/00 ,  C07C1/213 ,  C07C15/46 ,  C07C67/00 ,  C07C1/20

    CPC分类号： C07C15/46 ,  C07C1/213

    摘要： A process for making styrene by the cracking of beta-phenethyl acetate wherein the beta-phenethyl acetate is derived from the esterification of beta-phenethyl alcohol. The latter is derived from the homologation of benzyl alcohol-benzyl acetate mixtures. The esterification of the beta-phenethyl alcohol may be partial because it has been found that up to 20% by weight of beta-phenethyl alcohol may be fed to the cracking step and also converted to styrene. Benzyl alcohol and benzyl acetate can also be fed to the cracking step because it has been found that they are essentially inert at cracking conditions.

    摘要翻译： 通过乙酸β-苯乙酯的裂解制备苯乙烯的方法，其中乙酸β-苯乙酯是由β-苯乙醇的酯化得到的。 后者衍生自苄醇 - 乙酸苄酯混合物的同系物。 β-苯乙醇的酯化可能是部分的，因为已经发现可以将高至20重量％的β-苯乙醇进料到裂化步骤中并且也转化为苯乙烯。 苄醇和乙酸苄酯也可以进料到裂化步骤，因为已经发现它们在裂化条件下基本上是惰性的。