Preparation of adipic acid
    1.
    发明授权
    Preparation of adipic acid 失效
    己二酸的制备

    公开(公告)号:US4931590A

    公开(公告)日:1990-06-05

    申请号:US205340

    申请日:1988-06-10

    摘要: Adipic acid is 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 cobalt carbonyl or rhodium carbonyl complex 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) dehydrocarbonylation of the mixture consisting essentially of 4- and 3-formylvaleric esters in the presence of one or more elements of subgroup 8 of the Periodic Table at from 50.degree. to 400.degree. C. with formation of pentenoic esters, and recycling of the latter to stage (a) for hydroformylation,(d) oxidation of the 5-formylvaleric ester from stage (b) with molecular oxygen or a gas containing molecular oxygen to give a monoester of adipic acid, and(e) hydrolysis of the monoester of adipic acid to give adipic acid.

    摘要翻译: 己二酸通过包括以下步骤的方法制备:(a)在羰基或羰基铑羰基络合物的存在下,在一氧化碳和氢气下,在升高的温度和超大气压下与戊烯酸酯反应,加氢甲酰化形成 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出5-甲酰基戊酸酯,基本上由4-甲酰基戊酰胺 剩余的酯,(c)在50℃至400℃下在元素周期表第8族的一种或多种元素存在下,基本上由4-甲酰基戊酸酯组成的混合物的脱氢羰基化,形成戊烯酸酯, 并将后者再循环到步骤(a)进行加氢甲酰化,(d)用分子氧或含有分子氧的气体从阶段(b)氧化5-甲酰基戊酸酯,得到己二酸的单酯,和(e) 水解己二酸的单酯得到己二酸。

    Preparation of 5-formylvaleric esters
    2.
    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分类号: C07C67/347

    摘要: 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).

    摘要翻译: 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 5-methylbutyrolactone
    3.
    发明授权
    Preparation of 5-methylbutyrolactone 失效
    5-甲基丁酰胺的制备

    公开(公告)号:US5189182A

    公开(公告)日:1993-02-23

    申请号:US236199

    申请日:1988-08-25

    IPC分类号: C07D315/00

    CPC分类号: C07D315/00

    摘要: 5-Methylbutyrolactone is prepared by a process in which a pentenoic ester of the formula IX--CO.sub.2 R (I),where X is CH.sub.2 .dbd.CH--CH.sub.2 --CH.sub.2 --, CH.sub.3 --CH.dbd.CH--CH.sub.2 -- or CH.sub.3 --CH.sub.2 --CH.dbd.CH-- and R is alkyl, cycloalkyl, aralkyl or aryl, or a mixture of these esters is reacted with water at from 50.degree. to 350.degree. C. in the presence or absence of a diluenta) over a zeolite and/or phosphate catalyst orb) in the presence of from 0.01 to 0.25 mole of a sulfonic acid, a Lewis acid and/or a non-oxidizing mineral acid per mole of pentenoic ester or over from 0.1 to 40% by weight, based on the pentenoic ester, of a strongly acidic ion exchanger as a catalyst in a first stage, or the pentenoic ester of the formula I, where X and R have the stated meanings, is hydrolyzed in a first stage with the aid of a strongly acidic ion exchanger as a catalyst to give the pentenoic acid of the formula I, where R is hydrogen, and the resulting pentenoic acid is subjected to cyclization in a second stage in the presence of from 0.005 to 0.1 mole of a sulfonic acid, a Lewis acid or a non-oxidizing mineral acid per mole of pentenoic acid or over from 0.1 to 20% by weight, based on the pentenoic acid, of a strongly acidic ion exchanger at from 50.degree. to 350.degree. C.

    摘要翻译: 通过以下方法制备5-甲基丁内酯,其中式I X-CO 2 R(I)的戊烯酸酯,其中X为CH 2 = CH-CH 2 -CH 2 - ,CH 3 -CH = CH-CH 2 - 或CH 3 -CH 2 -CH = CH-和R是烷基,环烷基,芳烷基或芳基,或这些酯的混合物与水在50-350℃下在存在或不存在稀释剂a)的情况下与沸石和/或磷酸盐 催化剂或b)在0.01至0.25摩尔磺酸,路易斯酸和/或非氧化性无机酸/摩尔烯酸酯存在下或基于戊烯酸酯为0.1至40重量% 的作为第一阶段的催化剂的强酸性离子交换剂或其中X和R具有所述含义的式I的戊烯酸在第一阶段中借助于强酸性离子交换剂作为 催化剂得到式I的戊烯酸,其中R是氢,所得戊烯酸在第二阶段中在0.005t的存在下进行环化 o 0.1摩尔磺酸,路易斯酸或非氧化性无机酸/摩尔烯酸,或超过0.1-20重量%,基于戊烯酸,强酸性离子交换剂为50〜 350℃

    Preparation of caprolactam
    4.
    发明授权
    Preparation of caprolactam 失效
    己内酰胺的制备

    公开(公告)号:US4963673A

    公开(公告)日:1990-10-16

    申请号:US448902

    申请日:1989-12-12

    IPC分类号: C07D201/08

    CPC分类号: C07D201/08

    摘要: Caprolactam is prepared by heating a 6-aminocaproic ester in liquid phase in the presence of water to 230.degree.-350.degree. C. under superatmospheric pressure in a reaction medium comprising a liquid aromatic hydrocarbon having a boiling point of from 80.degree. to 240.degree. C. which is inert under reaction conditions, and isolating caprolactam from the reaction mixture.

    摘要翻译: 己内酰胺通过在含有沸点为80〜240℃的液体芳烃的反应介质的反应介质中,在高温大气压下,在水存在下,将液体中的6-氨基己酸酯加热到230〜 在反应条件下是惰性的,并从反应混合物中分离己内酰胺。

    Preparation of 2-substituted 4-acyloxy-2-butenals
    6.
    发明授权
    Preparation of 2-substituted 4-acyloxy-2-butenals 失效
    2-取代的4-酰氧基-2-丁烯醛的制备

    公开(公告)号:US4873362A

    公开(公告)日:1989-10-10

    申请号:US115891

    申请日:1987-11-02

    CPC分类号: C07C67/297

    摘要: 2-Substituted 4-acyloxy-2-butenals of the general formula I ##STR1## where R.sup.1 is alkyl of 1 to 12 carbon atoms which may be substituted by cycloalphatic, aromatic or heterocyclic radicals, by alkenyl or alkynyl or by hydroxyl, ether, thioether, acetoxy acyl, alkylamino, carboxyl or carbalkoxy, and R.sup.2 is acyloxy, are prepared by reacting a monosubstituted acetaldehyde of the general formula II ##STR2## where R.sup.2 has the abovementioned meaning, with an aldehyde of the general formula III ##STR3## where R.sup.1 has the abovementioned meaning, in the presence of a linear or cyclic secondary amine and of an organic acid at from 20.degree. to 100.degree. C.

    摘要翻译: 2-取代的通式I的(I)的4-酰氧基-2-丁烯,其中R 1是可被环基,芳族或杂环基取代的,可被烯基或炔基或羟基取代的1至12个碳原子的烷基 ,醚,硫醚,乙酰氧基酰基,烷基氨基,羧基或烷氧基,R2是酰氧基,是通过使具有上述含义的R2具有上述含义的通式II(II)的单取代乙醛与通式 式III(III)其中R 1具有上述含义,在线性或环状仲胺存在下,在20-100℃的有机酸存在下进行。

    Preparation of 4-acetals of butene-1,4-dial and novel acetals of
butene-1,4-dial
    7.
    发明授权
    Preparation of 4-acetals of butene-1,4-dial and novel acetals of butene-1,4-dial 失效
    保护1,4-DIAL的4-乙酸丁酯和1,4-DIAL的新型乙烯的制备

    公开(公告)号:US5162552A

    公开(公告)日:1992-11-10

    申请号:US44805

    申请日:1987-04-30

    CPC分类号: C07C45/74 C07D319/06

    摘要: A process for the preparation of 4-acetals of butene-1,4-dial of the formula ##STR1## where R is an alkyl, alkenyl, cycloalkyl or aralkyl radical of 1 to 12 carbon atoms which may contain alkoxy groups, or the two radicals R together form an alkylene or alkenylene radical of 2 to 10 carbon atoms which may contain alkoxy groups, and R.sup.1 is an alkyl, alkenyl or alkynyl radical of 1 to 12 carbon atoms which may be substituted by cycloaliphatic, aromatic or heterocyclic radicals or by hydroxyl, ether, thioether, acyl, alkylamino, carboxyl or carbalkoxy groups, or is an unsubstituted or substituted aryl radical or an alkoxy, alkylthio or acyloxy group, wherein a glyoxal monoacetal of the formula ##STR2## is reacted with an aldehyde of the formulaR.sup.1 --CH.sub.2 --CHO IIIat up to 150.degree. C., and novel acetals of butene-1,4-dial.

    摘要翻译: 制备式Ia的1,4-缩醛的4-缩醛的方法,其中R是可以含有烷氧基的具有1至12个碳原子的烷基,烯基,环烷基或芳烷基,或 两个基团R一起形成可含有烷氧基的2至10个碳原子的亚烷基或亚烯基,R 1是可以被脂环族,芳族或杂环基取代的具有1至12个碳原子的烷基,烯基或炔基,或 通过羟基,醚,硫醚,酰基,烷基氨基,羧基或烷氧基,或者是未取代或取代的芳基或烷氧基,烷硫基或酰氧基,其中式II的乙二醛单缩醛与式 式R1-CH2-CHOⅢ在最高达150℃,新戊烯-1,4-表盘的缩醛。

    Preparation of poloxy-alkylene glycols
    9.
    发明授权
    Preparation of poloxy-alkylene glycols 失效
    烷氧基 - 亚烷基二醇的制备

    公开(公告)号:US5416240A

    公开(公告)日:1995-05-16

    申请号:US24903

    申请日:1993-03-02

    CPC分类号: C08G65/20

    摘要: Polyoxyalkylene glycols are prepared by a process in which tetrahydrofuran is polymerized with a total of not more than 95 mol %, based on the amount of tetrahydrofuran used, of one or more comonomers from the group consisting of the cyclic ethers and acetals in the absence of water and in the presence of a monohydric alcohol or of a monocarboxylic acid with the aid of an anhydrous heteropoly acid catalyst, and the polyoxyalkylene glycol is liberated from the resulting polyoxyalkylene glycol monoethers or polyoxyalkylene glycol monoesters by cleavage of the monoether or monoester bond.

    摘要翻译: 聚氧亚烷基二醇通过以下方法制备,其中四氢呋喃基于所用四氢呋喃的总量不超过95摩尔%,在不存在共聚单体的情况下聚合来自由环醚和缩醛组成的组中的一种或多种共聚单体 水和一元醇或单羧酸存在下,借助于无水杂多酸催化剂,通过裂解单醚或单酯键,从所得聚氧亚烷基二醇单醚或聚氧亚烷基二醇单酯中释放出聚氧亚烷基二醇。