Method of producing 1,4-butanediol and tetrahydrofuran from furan
    62.
    发明授权
    Method of producing 1,4-butanediol and tetrahydrofuran from furan 失效
    从呋喃生产1,4-丁二醇和四氢呋喃的方法

    公开(公告)号:US5905159A

    公开(公告)日:1999-05-18

    申请号:US913440

    申请日:1997-09-16

    摘要: 1,4-butanediol and THF are prepared from furan by a process which comprises converting furan in the presence of water and hydrogen but in the absence of a water-soluble acid in a single stage over a hydrogenation catalyst, the hydrogenation catalyst containing at least one element of subgroup I, V, VI, VII or VIII in the form of a compound or in elemental form and the restriction that the catalyst does not contain nickel alone being applicable.

    摘要翻译: PCT No.PCT / EP96 / 01247 371日期:1997年9月16日 102(e)日期1997年9月16日PCT Filted 1996年3月21日PCT公布。 出版物WO96 / 29322 1991年9月26日,1991年4月26日,4-丁二醇和THF由呋喃制备,该方法包括在水和氢存在下转化呋喃,但在氢化催化剂的单一阶段不存在水溶性酸, 含有化合物或元素形式的亚组I,V,VI,VII或VIII中的至少一种元素的氢化催化剂以及催化剂不含有镍的限制是适用的。

    Preparation of aldehydes
    64.
    发明授权
    Preparation of aldehydes 失效
    醛的制备

    公开(公告)号:US5679869A

    公开(公告)日:1997-10-21

    申请号:US567749

    申请日:1995-12-05

    CPC分类号: B01J23/06 C07C45/41

    摘要: A process for preparing aldehydes of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, aryl, C.sub.7 -C.sub.12 -alkylphenyl, C.sub.7 -C.sub.12 -phenylalkyl and R.sup.1 and R.sup.2 are joined together to form a 3-, 4-, 5-, 6- or 7-membered cycloaliphatic ring, R.sup.1 and R.sup.3 are each C.sub.1 -C.sub.4 -alkoxy, phenoxy, methylamino, dimethylamino or halogen, and R.sup.1 is additionally hydroxyl or amino comprises reacting a carboxylic acid or ester of the general formula II ##STR2## where R.sup.1, R.sup.2 and R.sup.3 are each as defined above, and R.sup.4 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, aryl, C.sub.7 -C.sub.12 -alkylphenyl or C.sub.7 -C.sub.12 -phenylalkyl, with hydrogen in the gas phase at temperatures from 200.degree. to 450.degree. C. and pressures from 0.1 to 20 bar in the presence of a catalyst whose catalytically active mass comprises from 60 to 99.9% by weight of zirconium oxide and from 0.1 to 40% by weight of one or more elements of the lanthanides.

    摘要翻译: 制备通式I(I)的醛的方法,其中R1,R2和R3各自为氢,C1-C6烷基,C3-C8-环烷基,芳基,C7-C12-烷基苯基,C7-C12- 苯基烷基和R 1和R 2连接在一起形成3-,4-,5-,6-或7-元环脂族环,R 1和R 3各自为C 1 -C 4 - 烷氧基,苯氧基,甲基氨基,二甲基氨基或卤素,R 1 另外羟基或氨基包括使通式II(II)的羧酸或酯与其中R 1,R 2和R 3各自如上所定义,R 4是氢,C 1 -C 6烷基,C 3 -C 8 - 环烷基,芳基,C 7 -C 12 - 烷基苯基或C 7 -C 12 - 苯基烷基,在气相中的氢气在200-450℃的温度和0.1至20巴的压力下,在催化剂存在下,其催化活性质量包含 60至99.9重量%的氧化锆和0.1至40重量%的一种或多种镧系元素。

    Preparation of aliphatic alpha, omega-aminonitriles
    66.
    发明授权
    Preparation of aliphatic alpha, omega-aminonitriles 失效
    脂肪族α,ω-氨基腈的制备

    公开(公告)号:US5512697A

    公开(公告)日:1996-04-30

    申请号:US370606

    申请日:1995-01-10

    CPC分类号: C07C253/30

    摘要: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a base and of a hydrogenation catalyst, by carrying out the hydrogenation in the presence of ammonia and lithium hydroxide or of a compound which gives lithium hydroxide during the hydrogenation.

    摘要翻译: 通过在碱和氢化催化剂的存在下,在升高的温度和超大气压下,通过在氨和氢氧化锂的存在下进行氢化或通过在氢气和氢氧化锂存在下进行氢化,将脂肪族α,ω-氨基腈部分氢化, 在氢化期间产生氢氧化锂的化合物。

    Preparation of cycloalkanols
    67.
    发明授权
    Preparation of cycloalkanols 失效
    环烷醇的制备

    公开(公告)号:US5475158A

    公开(公告)日:1995-12-12

    申请号:US159706

    申请日:1993-12-01

    CPC分类号: C07C29/095 C07C2101/14

    摘要: A process for the preparation of cycloalkanols by the hydrolysis of cycloalkyl C.sub.1 -C.sub.4 fatty acid esters, which comprises the following steps:a) reaction of cycloalkyl C.sub.1 -C.sub.4 fatty acid esters with water at a temperature of from 30.degree. to 250.degree. in the liquid phase yielding a reaction mixture consisting of cycloalkyl C.sub.1 -C.sub.4 fatty acid esters, cycloalkanol, C.sub.1 -C.sub.4 fatty acids, and water.b) separation of the reaction mixture obtained in stage a) at a temperature of from 0.degree. to 200.degree. C. into a top phase consisting substantially of cycloalkanol and cycloalkyl C.sub.1 -C.sub.4 fatty acid esters and a bottom phase consisting substantially of water and C.sub.1 -C.sub.4 fatty acids.c) separation of cycloalkanol from the top phase obtained in stage b) by distillation and recycling unconverted cycloalkyl C.sub.1 -C.sub.4 fatty acid esters to stage a).

    摘要翻译: 通过环烷基C1-C4脂肪酸酯的水解制备环烷醇的方法,其包括以下步骤:a)环烷基C1-C4脂肪酸酯与水在30℃至250℃的温度下反应 产生由环烷基C1-C4脂肪酸酯,环烷醇,C1-C4脂肪酸和水组成的反应混合物。 b)将步骤a)中获得的反应混合物在0℃至200℃的温度下分离成基本上由环烷基醇和环烷基C1-C4脂肪酸酯组成的顶相和基本上由水和C1组成的底部相 -C4脂肪酸。 c)通过蒸馏并将未转化的环烷基C1-C4脂肪酸酯再循环到步骤a)中,从步骤b)中获得的顶部相分离环烷醇。

    Preparation of five-membered nitrogen heterocycles
    68.
    发明授权
    Preparation of five-membered nitrogen heterocycles 失效
    五元氮杂环的制备

    公开(公告)号:US5463079A

    公开(公告)日:1995-10-31

    申请号:US266143

    申请日:1994-06-27

    摘要: A process for preparing five-membered nitrogen heterocycles of the general formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8 are hydrogen,R.sup.1 is C.sub.1 -C.sub.10 -alkyl, C.sub.1 -C.sub.10 -hydroxyalkyl, C.sub.1 -C.sub.10 -aminoalkyl, aryl, C.sub.7 -C.sub.10 -aralkyl and C.sub.7 -C.sub.10 -alkylaryl,R.sup.5 and R.sup.6 are C.sub.1 -C.sub.8 -alkyl,R.sup.2 and R.sup.3 together are oxygen with the proviso that R.sup.8 is hydrogen,R.sup.3 and R.sup.4 and/or R.sup.7 and R.sup.8 or R.sup.4 and R.sup.7 together are a bond,comprises reacting vinyloxiranes of the general formula II ##STR2## where R.sup.5 and R.sup.6 have the abovementioned meanings, with ammonia or primary amines of the general formula IIIR.sup.1 --NH.sub.2 (III),where R.sup.1 has the abovementioned meanings, in the presence of a compound of an element of Group VIIIb or Ib of the Periodic Table, with or without the addition of a Lewis acid, at from 20.degree. to 200.degree. C. under from 1 to 70 bar, and subsequently cyclizing in the presence of hydrogen and of a hydrogenation catalyst at from 150.degree. to 350.degree. C. under from 0.1 to 300 bar.

    摘要翻译: 制备通式I(I)的五元氮杂环的方法,其中R 1,R 2,R 3,R 4,R 5,R 6,R 7,R 8是氢,R 1是C 1 -C 10 - 烷基,C 1 -C 10 - 羟基烷基,C 1 -C 10 - 氨基烷基,芳基,C 7 -C 10 - 芳烷基和C 7 -C 10烷基芳基,R 5和R 6是C 1 -C 8烷基,R 2和R 3一起是氧,条件是R 8是氢,R 3和R 4 和/或R 7和R 8或R 4和R 7一起是一个键,包括使具有上述含义的R5和R6具有通式II的乙烯基环己烷(II)与通式III的N-或叔胺R1- NH 2(III),其中R 1具有上述含义,在有或没有添加路易斯酸的情况下,在20〜200℃下,在VIIIb或Ib族元素的化合物的存在下进行。 在1至70巴下,然后在氢气和氢化催化剂的存在下在150-350℃下在0.1至300巴下环化。

    Preparation of .alpha.,.omega.-dicarboxylic acid diesters
    69.
    发明授权
    Preparation of .alpha.,.omega.-dicarboxylic acid diesters 失效
    制备α,ω-二羧酸二酯

    公开(公告)号:US5453535A

    公开(公告)日:1995-09-26

    申请号:US266226

    申请日:1994-06-27

    申请人: Rolf Fischer

    发明人: Rolf Fischer

    IPC分类号: C07C67/00 C07C69/34

    CPC分类号: C07C67/00

    摘要: A process for the preparation of a .alpha.,.omega.-dicarboxylic acid diester of the general formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 denotes hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, C.sub.2 -C.sub.20 alkoxycarbonyl, nitro, C.sub.2 -C.sub.20 alkoxy and/or cyano andn is an integer from 1 to 12,wherein cycloalkanones of the general formula II ##STR2## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and n have the aforementioned meanings, are caused to react with dimethylcarbonate in the presence of a nitrogenous base of the general formula III ##STR3## in which R.sup.6, R.sup.7, R.sup.8 denote hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.8 cycloalkyl or C.sub.7 -C.sub.20 aralkyl or R.sup.6 and R.sup.7 together form a C.sub.2 -C.sub.7 alkylene chain optionally mono- to penta-substituted by R.sup.1,at temperatures ranging from 50.degree. to 300.degree. C.

    摘要翻译: 一种制备通式Ⅰ的α,ω-二羧酸二酯的方法,其中R 1,R 2,R 3,R 4,R 5表示氢,C 1 -C 20烷基,C 2 -C 20烯基,C 2 -C 20炔基 ,C 2 -C 20烷氧基羰基,硝基,C 2 -C 20烷氧基和/或氰基,n为1至12的整数,其中通式II(II)的环烷酮其中R1,R2,R3,R4,R5和n 具有上述含义,在通式III的烷基,C3-C8环烷基或C7-C20芳烷基或R6和R7的含氮碱的存在下,与二甲基碳酸酯反应,一起形成C 2 -C 7亚烷基链,任选地单 - 至 在50℃〜300℃的温度下由R1五取代。

    Preparation of 5-membered ring heterocycles
    70.
    发明授权
    Preparation of 5-membered ring heterocycles 失效
    五元环杂环的制备

    公开(公告)号:US5453516A

    公开(公告)日:1995-09-26

    申请号:US165463

    申请日:1993-12-13

    摘要: A process for preparing 5-membered ring heterocycles of the general formula I ##STR1## where R.sup.1 is methyl or hydroxyethyl,R.sup.2,R.sup.3,R.sup.4,R.sup.5 and R.sup.6 are hydrogen, C.sub.1 - to C.sub.12 -alkyl, C.sub.2 - to C.sub.12 -alkenyl, aryl, C.sub.3 - to C.sub.8 -cycloalkyl, C.sub.1 - to C.sub.12 -alkoxy, halogen, C.sub.2 - to C.sub.20 -alkoxycarbonylalkyl, C.sub.2 - to C.sub.20 -alkylcarbonyloxy, formyl, C.sub.2 - to C.sub.20 -formylalkyl, benzoyl or --CH(OR.sup.3)(OR.sup.5), or R.sup.3 and R.sup.5 together are a C.sub.2 - to C.sub.7 -alkylene chain which is unsubstituted or monosubstituted to pentasubstituted by R.sup.4 or a .dbd.CH--CH.dbd.CH--CH.dbd. unit which is unsubstituted or monosubstituted to tetrasubstituted by R.sup.4,X is oxygen or N--R.sup.4by reacting 5-membered ring heterocycles of the general formula II ##STR2## where R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and X have the abovementioned meanings and Y is hydrogen, acetyl or C.sub.2 - to C.sub.20 -alkoxycarbonyl, with dimethyl or ethylene carbonate in the presence of a nitrogen-containing base at from 50.degree. to 300.degree. C. and from 0.01 to 50 bar is described.

    摘要翻译: 其中R 1是甲基或羟乙基,R 2,R 3,R 4,R 5和R 6是氢,C 1 -C 12 - 烷基,C 2 -C 12的通式I(I)的五元环杂环的制备方法 - 烯基,芳基,C 3 -C 8 - 环烷基,C 1 -C 12 - 烷氧基,卤素,C 2 -C 20 - 烷氧基羰基烷基,C 2 -C 20 - 烷基羰氧基,甲酰基,C 2 -C 20甲酰烷基,苯甲酰基或-CH )(OR 5)或R 3和R 5一起是未被取代或单取代以被R4或a = CH-CH = CH-CH =未被R4单取代或单取代的单元的C2至C7-亚烷基链, X是通过使通式II的5-元环杂环(II)其中R 2,R 3,R 4,R 5,R 6和X具有上述含义并且Y是氢,乙酰基或C 2 - 在含有50〜300℃的含氮碱和0.01〜50巴的存在下,与二甲基或碳酸亚乙酯进行反应。