Preparation of ethylene glycol
    2.
    发明授权
    Preparation of ethylene glycol 失效
    乙二醇的制备

    公开(公告)号:US4740525A

    公开(公告)日:1988-04-26

    申请号:US900770

    申请日:1986-08-26

    CPC分类号: C07C29/158 Y02P20/52

    摘要: Ethylene glycol is prepared from carbon monoxide and hydrogen in homogeneous liquid phase under superatmospheric pressure and at elevated temperature in the presence of a rhodium-containing catalyst and in the presence of an organic solvent, the organic solvent used being a C.sub.2 -C.sub.20 -n-alkanol and the concentration of this alkanol, based on the total amount of the mixture, constantly being maintained at not less than 50% by weight.

    摘要翻译: 乙二醇由均一液相中的一氧化碳和氢气在超大气压和升高的温度下在含铑催化剂存在下制备,并且在有机溶剂存在下,所用的有机溶剂是C 2 -C 20正 - 链烷醇和该烷醇的浓度,基于混合物的总量,不断保持在不小于50重量%。

    Preparation of 5-methylbutyrolactone
    4.
    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 5-formylvaleric esters
    5.
    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 adipic acid
    7.
    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 1,1,2-trialkoxyethanes
    8.
    发明授权
    Preparation of 1,1,2-trialkoxyethanes 失效
    1,1,2-三烷氧基乙醚的制备

    公开(公告)号:US4755625A

    公开(公告)日:1988-07-05

    申请号:US73999

    申请日:1987-07-16

    CPC分类号: C07C41/48

    摘要: 1,1,2-trialkoxyethanes I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.8 -alkyl and R.sup.1 and R.sup.2 may furthermore be bonded to one another to form a 5-membered to 7-membered ring, are prepared by reacting a formaldehyde dialkyl acetal II with carbon monoxide and hydrogen, from 0.5 to 1.5 moles of hydrogen being used per mole of carbon monoxide, and with not less than 1 mole of alcohol R.sup.3 OH per mole of formaldehyde dialkyl acetal under superatmospheric pressure and at elevated temperatures in the presence of a catalyst which is formed from a cobalt carbonyl compound and a trivalent organic compound of the formula III ##STR2## where A is phosphorus, arsenic, antimony or bismuth and R.sup.4, R.sup.5 and R.sup.6 are each an organic radical.

    摘要翻译: 其中R 1,R 2和R 3各自是C 1 -C 8 - 烷基,R 1和R 2可以彼此键合形成5元至7元环, 通过使甲醛二烷基缩醛II与一氧化碳和氢反应,每摩尔一氧化碳使用0.5至1.5摩尔氢,并且在超大气压下每摩尔甲醛二烷基缩醛不少于1摩尔醇R3OH, 在由羰基钴化合物和式III的三价有机化合物形成的催化剂存在下,在升高的温度下,其中A是磷,砷,锑或铋,并且R 4,R 5和R 6各自是有机的 激进。