Preparation of 2-(3-aminopropyl)-cycloalkylamines
    92.
    发明授权
    Preparation of 2-(3-aminopropyl)-cycloalkylamines 失效
    2-(3-氨基丙基) - 环丙基胺的制备

    公开(公告)号:US5239120A

    公开(公告)日:1993-08-24

    申请号:US676087

    申请日:1991-03-27

    CPC classification number: C07C209/48 C07C209/26 C07C2101/08 C07C2101/14

    Abstract: A process for the preparation of a 2-(3-aminopropyl)-cycloalkylamine of the general formula I ##STR1## in which the subscript n is an integer from 1 to 4, from a 2-(2-cyanoethyl)-cycloalkanone of the general formula II ##STR2## in which the subscript n has the meaning stated, wherein the following stages are carried out in discrete reaction chambers:a) the 2-(2-cyanoethyl)-cycloalkanone of formula II is reacted in a first reaction chamber with excess ammonia over an acidic heterogeneous catalyst at a temperature from 20.degree. to 150.degree. C. and a pressure of from 15 to 500 bar, andb) in a second reaction chamber, the reaction product from stage a) is hydrogenated at a temperature of from 60.degree. to 150.degree. C. and a pressure of from 50 to 300 bar in the presence of excess ammonia over a catalyst containing cobalt, nickel, ruthenium, and/or some other noble metal, which catalyst optionally contains a basic component or is supported on neutral or basic supporting material.

    Abstract translation: 2-(2-氰基乙基) - (2-氨基丙基) - 环烷基胺的制备方法,其中下标n为1至4的整数,通式I(I) 通式II(II)的环烷酮,其中下标n具有所述的含义,其中以下步骤在离散的反应室中进行:a)式II的2-(2-氰基乙基) - 环烷酮是 在酸性多相催化剂的第一反应室中,在第二反应室中,在20至150℃的温度和15至500巴的压力下,在第一反应室中与过量的氨反应,和b)在第二反应室中,反应产物从步骤a )在过量氨的存在下在含有钴,镍,钌和/或一些其它贵金属的催化剂的温度下在60至150℃的温度和50至300巴的压力下氢化,该催化剂 可选地含有基本组分或者在中性或基础支撑材料上支撑。

    Preparation of 5-formylvaleric esters
    94.
    发明授权
    Preparation of 5-formylvaleric esters 失效
    5-甲酰戊酸酯的制备

    公开(公告)号:US5003102A

    公开(公告)日:1991-03-26

    申请号:US206751

    申请日:1988-06-15

    CPC classification number: C07C67/347

    Abstract: 5-Formylvaleric esters are prepared by a process which comprises the following steps:(a) Hydroformylation of a pentenoic ester by reaction with carbon monoxide and hydrogen at elevated temperatures and under superatmospheric pressure in the presence of a carbonyl complex of a metal of group 8 of the Periodic Table with formation of a mixture of 5-, 4- and 3-formylvaleric esters,(b) Isolation of the 5-formylvaleric ester from the resulting mixture of 5-, 4- and 3-formylvaleric esters, a mixture essentially consisting of 4- and 3-formylvaleric esters remaining,(c) Cleavage of the mixture essentially consisting of 4- and 3-formylvaleric esters at from 50.degree. to 400.degree. C. in the presence of a catalyst to give pentenoic esters and(d) Recycling of the pentenoic esters to stage (a).

    Abstract translation: 5-甲酰戊酸酯通过包括以下步骤的方法制备:(a)在升高的温度和超大气压下,在第8组的金属的羰基络合物存在下,通过与一氧化碳和氢气反应来进行戊烯基酯的加氢甲酰化 的化合物,形成5-,4-和3-甲酰基戊酸酯的混合物,(b)从得到的5-,4-和3-甲酰基戊酸酯混合物中分离5-甲酰基戊酸酯,基本上 由4-和3-甲酰基戊酸酯组成,(c)在催化剂存在下,在50-400℃下将基本上由4-和3-甲酰基戊酸酯组成的混合物切割,得到戊烯酸酯和(d )将戊烯酸酯循环回到(a)阶段。

    Preparation of 1,1-disubstituted ethylene compounds
    95.
    发明授权
    Preparation of 1,1-disubstituted ethylene compounds 失效
    1,1-二取代的乙烯化合物的制备

    公开(公告)号:US4997955A

    公开(公告)日:1991-03-05

    申请号:US205341

    申请日:1988-06-10

    Abstract: 1,1-disubstituted ethylene compounds of the general formula I ##STR1## where Z is COOR.sup.2, CN or COR.sup.3, R.sup.1 is an aliphatic, cycloalophatic, araliphatic, aromatic or heterocyclic radical which may be further substituted by functional groups which are inert under the reaction conditions, R.sup.2 is an aliphatic, cycloaliphatic or araliphatic radical of 1 to 15 carbon atoms and R.sup.3 is an aliphatic, cycloaliphatic or araliphatic radical of 1 to 15 carbon atoms which may be substituted by groups which are inert under the reaction conditions, and R.sup.1 together with R.sup.2 or R.sup.1 together with R.sup.3 may furthermore form an alkylene chain of 2 to 10 carbon atoms which may be substituted by groups which are inert under the reaction conditions, are prepared from a formyl compound of the general formula II ##STR2## where Z, R.sup.1, R.sup.2 and R.sup.3 have the above meanings, by a process in which the reaction is carried out in the presence of formaldehyde or paraformaldehyde and(a) a C.sub.1 -C.sub.12 -alkanol or(b) a mixture of a C.sub.1 -C.sub.12 -alkanol and water or(c) with water in the presence of a secondary amine and a protic acidat from 0.degree. to 200.degree. C.

    Abstract translation: 其中Z是COOR2,CN或COR3的通式I的1,1-二取代的乙烯化合物,R 1是可以进一步被惰性的官能团取代的脂族,环状,芳脂族,芳族或杂环基团 反应条件中,R 2为1至15个碳原子的脂族,脂环族或芳脂族基团,R 3为可被反应条件下为惰性基团取代的具有1至15个碳原子的脂族,脂环族或芳脂族基团,以及 R1与R 2或R 1与R 3一起可以形成可以在反应条件下为惰性的基团取代的具有2-10个碳原子的亚烷基链,其由通式II的甲酰基化合物制备 其中Z,R 1,R 2和R 3具有上述含义,通过反应在甲醛或多聚甲醛存在下进行的方法和(a)C 1 -C 12烷醇或(b) C 12链烷醇和水,或(c)在0℃至200℃的仲胺和质子酸存在下与水反应。

    Preparation of caprolactam
    99.
    发明授权
    Preparation of caprolactam 失效
    己内酰胺的制备

    公开(公告)号:US4767857A

    公开(公告)日:1988-08-30

    申请号:US133735

    申请日:1987-12-16

    CPC classification number: C07D201/08

    Abstract: Caprolactam is prepared by heating a 6-aminocaproic ester at 100.degree.-320.degree. C. in the presence of a reaction medium comprising an aromatic hydrocarbon which is liquid under reaction conditions and has a boiling point from 80.degree. to 240.degree. C., and isolating caprolactam from the reaction medium.

    Abstract translation: 在含有在反应条件下为液体并且沸点为80-240℃的芳族烃的反应介质存在下,在100-320℃下加热6-氨基己酸酯制备己内酰胺, 从反应介质中分离己内酰胺。

    Preparation of caprolactam
    100.
    发明授权
    Preparation of caprolactam 失效
    己内酰胺的制备

    公开(公告)号:US4730040A

    公开(公告)日:1988-03-08

    申请号:US7788

    申请日:1987-01-28

    CPC classification number: C07D201/08

    Abstract: .epsilon.-caprolactam is prepared by a process in which(a) a 5-formylvalerate is reacted with water in the presence of an acidic agent at from 30.degree. to 200.degree. C.,(b) the 5-formylvaleric acid thus obtained is reacted with excess ammonia and hydrogen in the presence of a hydrogenation catalyst and of a solvent which is inert under the reaction conditions, at from 50.degree. to 150.degree. C. under superatmospheric pressure, and(c) after the ammonia has been separated off, the resulting solution of 6-aminocaproic acid is heated to 150.degree.-370.degree. C. and the caprolactam formed is isolated.

    Abstract translation: ε-己内酰胺通过以下方法制备:(a)在30℃至200℃下,在酸性试剂存在下,使5-甲酰基戊酸酯与水反应,(b)将所得的5-甲酰基戊酸反应 在氢化催化剂和在反应条件下为惰性的溶剂中,在超大气压下,在50-150℃下,过量的氨和氢,和(c)氨分离后, 将得到的6-氨基己酸溶液加热至150-370℃,形成己内酰胺。

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