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    • 3. 发明授权
    • Process for the preparation of 1,4-butanediol monoethers
    • 1,4-丁二醇单醚的制备方法
    • US06103939A
    • 2000-08-15
    • US426957
    • 1999-10-26
    • Rolf FischerRolf PinkosMartin SchaferArthur HohnPeter Schwab
    • Rolf FischerRolf PinkosMartin SchaferArthur HohnPeter Schwab
    • C07C41/26C07C43/13C07C43/00C07C41/00
    • C07C41/26
    • A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or IIRO--CH.sub.2 --CH.dbd.CH--CH.sub.2 --OR IRO--CH.sub.2 --CH.sub.2 .dbd.CH--CH.sub.2 --OR II,where the R radicals can be identical or different and are C.sub.1 -C.sub.15 -alkyl or cycloalkyl radicals, C.sub.6 -C.sub.12 -aryl radicals or C.sub.7 -C.sub.15 -aralkyl radicals, with water and hydrogen at from 20 to 300.degree. C. under from 1 to 300 bar in the presence of catalysts or catalyst combinations which comprise components which are both capable of hydrogenation and have acidic or basic centers and a novel process for preparing 1,4-butanediol diethers of the formula I by metathesis are described.The invention furthermore relates to the separate preparation of 1,4-butanediol monoethers of the formula IIIHO--CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --OR III,where R has the meanings indicated for formulae I and II, for which purpose 1,4-butanediol diethers of the formulae I and/or II are reacted as claimed in claim 1 with water and hydrogen in the presence of a hydrogenation catalyst at from 20 to 300.degree. C. under from 1 to 300 bar.
    • 一种制备四氢呋喃的方法,其包括使式I和/或IIRO-CH2-CH = CH-CH2-ORIRO-CH2-CH2 = CH-CH2-ORII的1,4-丁烯二醇二醚反应,其中R基团可以是 相同或不同的是C 1 -C 15 - 烷基或环烷基,C 6 -C 12 - 芳基或C 7 -C 15 - 芳烷基,其中水和氢在20-300℃下,在1至300巴下, 描述了包含能够氢化并具有酸性或碱性中心的组分的催化剂或催化剂组合,以及通过复分解制备式I的1,4-丁二醇二醚的新方法。 本发明还涉及分别制备式IIIHO-CH2-CH2-CH2-CH2-ORIII的1,4-丁二醇单醚,其中R具有式I和II所示的含义,为此目的1,4-丁二醇 式I和/或II的二醚在氢化催化剂存在下,在20-300℃,1〜300巴下,与水和氢反应,如权利要求1所述。
    • 8. 发明授权
    • Preparation of cycloalkanols
    • 环烷醇的制备
    • US5475158A
    • 1995-12-12
    • US159706
    • 1993-12-01
    • Thomas KrugRolf FischerRolf Pinkos
    • Thomas KrugRolf FischerRolf Pinkos
    • C07C27/02C07C29/09C07C35/08C07C29/20C07C53/10
    • C07C29/095C07C2101/14
    • 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).
    • 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。
    • 9. 发明授权
    • Preparation of five-membered nitrogen heterocycles
    • 五元氮杂环的制备
    • US5463079A
    • 1995-10-31
    • US266143
    • 1994-06-27
    • Rolf PinkosRolf Fischer
    • Rolf PinkosRolf Fischer
    • C07D207/26C07D207/267C07D207/32C07D207/323C07D295/023C07D207/263C07D207/02C07D207/38
    • C07D207/267C07D207/323C07D295/023
    • 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.
    • 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。
    • 10. 发明授权
    • Preparation of 5-membered ring heterocycles
    • 五元环杂环的制备
    • US5453516A
    • 1995-09-26
    • US165463
    • 1993-12-13
    • Rolf FischerRolf Pinkos
    • Rolf FischerRolf Pinkos
    • C07D201/02C07D207/26C07D207/267C07D307/33C07D315/00C07D207/27C07D307/28
    • C07D201/02C07D207/267C07D307/33C07D315/00
    • 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.
    • 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。