Preparation of N,N-dialkarylamines
    4.
    发明授权
    Preparation of N,N-dialkarylamines 失效
    制备N,N-二烷基芳基胺

    公开(公告)号:US5371290A

    公开(公告)日:1994-12-06

    申请号:US189294

    申请日:1994-01-31

    CPC classification number: C07C209/18 Y02P20/582 Y02P20/584

    Abstract: A process for the preparation of N,N-dialkylarylamines (I) by reacting arylamines (II) with alcohols (IIIa) or dialkyl ethers (IIIb) in the presence of an oxygen acid of phosphorus or in the presence of an ammonium salt thereof as catalyst, comprises reacting the oxygen acid of phosphorus with an arylamine (IV) before the reaction is commenced. The invention also relates to the regeneration of the catalyst by occasionally interrupting the reaction and treating the catalyst phase at from 100.degree. to 300.degree. C. with steam or water.

    Abstract translation: 一种通过芳基胺(II)与醇(IIIa)或二烷基醚(IIIb)在磷酸的存在下或其铵盐存在下使芳基胺(II)与醇(IIIa)或其二烷基醚(IIIb)反应来制备N,N-二烷基芳基胺 催化剂包括在反应开始之前使磷的氧酸与芳基胺(IV)反应。 本发明还涉及催化剂的再生,偶尔中断反应并用蒸汽或水处理在100℃至300℃的催化剂相。

    Method for synthesizing aromatic amines, aromatic alcohols and aromatic
thiols by aromatic nucleophilic substitution reaction
    5.
    发明授权
    Method for synthesizing aromatic amines, aromatic alcohols and aromatic thiols by aromatic nucleophilic substitution reaction 失效
    通过芳族亲核取代反应合成芳香胺,芳香醇和芳族硫醇的方法

    公开(公告)号:US5117064A

    公开(公告)日:1992-05-26

    申请号:US645861

    申请日:1991-01-25

    Abstract: A method for synthesizing an aromatic amine, an aromatic alcohol or an aromatic thiol by an aromatic nucleophilic substitution reaction is disclosed, which comprises reacting a compound represented by formula (I): ##STR1## wherein Q.sup.1 represents an aromatic ring; EWG represents a group having a positive Hammett's .sigma..sub.p value; m represents an integer of 1 to 5; n represents an integer of 1 to 3; and X represents a group represented by formula (III): ##STR2## wherein R.sup.4 represents hydrogen atom, an aryl group or an alkyl group; Q.sup.2 represents an atomic group for forming an aromatic ring; and Z.sup.1 and Z.sup.2 each represents an oxygen atom or a sulfur atom with a nucleophilic reagent represented by formula (II):M--Y (II)wherein M represents a hydrogen atom, a metal atom or an ammonium; Y represents a --NHR.sup.1 group, an --OR.sup.1 group, or a --SR.sup.1 group; R.sup.1 represents a hydrogen atom, an alkyl group, an aryl group, a residue of a heterocyclic ring, a --NR.sup.2 R.sup.3 group or an --OR.sup.2 group; and R.sup.2 and R.sup.3 each represents a hydrogen atom, an alkyl group, an aryl group or a residue of a heterocyclic ring.

    Abstract translation: 公开了通过芳族亲核取代反应合成芳香族胺,芳香族醇或芳香族硫醇的方法,该方法包括使式(I)表示的化合物:其中Q1表示芳环的式(I)表示: EWG代表具有正哈米特σ值的一组; m表示1〜5的整数, n表示1〜3的整数, X表示式(III)表示的基团:其中R 4表示氢原子,芳基或烷基; Q2表示形成芳环的原子团; Z1和Z2各自表示与式(II)表示的亲核试剂的氧原子或硫原子:M-Y(II)其中M表示氢原子,金属原子或铵; Y表示-NHR1基,-OR1基或-SR1基; R1表示氢原子,烷基,芳基,杂环的残基,-NR2R3基或-OR2基; R 2和R 3各自表示氢原子,烷基,芳基或杂环的残基。

    PROCESS FOR PRODUCING TERTIARY AMINE
    9.
    发明申请
    PROCESS FOR PRODUCING TERTIARY AMINE 有权
    生产亚胺的方法

    公开(公告)号:US20100298608A1

    公开(公告)日:2010-11-25

    申请号:US12159094

    申请日:2006-12-26

    CPC classification number: C07C209/26 C07C211/08

    Abstract: Disclosed is a process for producing a tertiary amine from a primary or secondary amine and alcohol as corresponding starting materials, which includes step (i) of dehydrogenating an alcohol to obtain an aldehyde, step (ii) of reacting the aldehyde with a primary or secondary amine to obtain a primary or secondary amine adduct, and step (iii) of hydrogenating the primary or secondary amine adduct to obtain a tertiary amine, wherein step (ii) is carried out independently of the other steps.

    Abstract translation: 公开了一种由伯胺或仲胺和醇制备作为相应起始原料的叔胺的方法,其包括使醇脱氢得到醛的步骤(ⅰ),使醛与伯或仲 胺,以获得伯胺或仲胺加合物,和步骤(iii)使伯胺或仲胺加合物氢化得到叔胺,其中步骤(ii)独立于其它步骤进行。

Patent Agency Ranking