Conversion of 1,3-dioxanes to 4-oxaaldehydes
    1.
    发明授权
    Conversion of 1,3-dioxanes to 4-oxaaldehydes 失效
    1,3-二恶烷转化为4-氧杂醛

    公开(公告)号:US4939280A

    公开(公告)日:1990-07-03

    申请号:US188416

    申请日:1988-04-29

    摘要: 4-Oxaaldehydes of the formula ##STR1## are prepared by catalytic isomerization of 1,3-dioxanes by a process in which a 1,3-dioxane of the formula ##STR2## where R.sup.1, R.sup.2, R.sup.4 and R.sup.5 are identical or different and are each hydrogen, a straight-chain or branched alkyl, alkenyl or alkynyl radical of not more than 18 carbon atoms, a cycloalkyl or cycloalkenyl radical of 5 to 8 carbon atoms, an aryl, alkylaryl, aralkyl or alkenylaryl radical of 5 to 16 carbon atoms or a heterocyclic radical, and furthermore R.sup.1 and R.sup.2 and/or R.sup.4 and R.sup.5 together with the carbon atom to which they are bonded may form a cycloalkane, a cycloalkene or a heterocyclic structure, and the stated radicals may furthermore carry substituents which are inert under the reaction conditions, and R.sup.3 is hydrogen or straight-chain or branched alkyl, is isomerized using a phosphate as a catalyst.

    摘要翻译: 通过其中R1,R2,R4和R5相同或不同的式“IMAGE”的1,3-二恶烷的方法,通过1,3-二恶烷的催化异构化制备式“IMAGE”的4-氧代醛, 各自为氢,不超过18个碳原子的直链或支链烷基,烯基或炔基,5至8个碳原子的环烷基或环烯基,5至16个碳的芳基,烷基芳基,芳烷基或烯基芳基 原子或杂环基团,此外,R 1和R 2和/或R 4和R 5与它们所键合的碳原子一起可以形成环烷烃,环烯烃或杂环结构,并且所述基团还可以携带惰性的取代基 在反应条件下,R 3为氢或直链或支链烷基,使用磷酸酯作为催化剂异构化。

    Preparation of 2-(3-aminopropyl)-cycloalkylamines
    2.
    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

    摘要: 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.

    摘要翻译: 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 cyclopentenones
    3.
    发明授权
    Preparation of cyclopentenones 失效
    环戊二烯的制备

    公开(公告)号:US5118864A

    公开(公告)日:1992-06-02

    申请号:US664382

    申请日:1991-03-04

    CPC分类号: C07C45/455 Y02P20/582

    摘要: Cyclopentenones of the formula I ##STR1## where each of R.sup.1 to R.sup.4 is independently of the others hydrogen or an organic radical, are prepared by converting a carboxylic ester of the formula IIa, IIb or IIcR.sup.1 CH.dbd.CR.sup.2 --CHR.sup.3 --CHR.sup.4 --CO.sub.2 R.sup.5 (IIa) and/orR.sup.1 CH.sub.2 --CR.sup.2 .dbd.CR.sup.3 --CHR.sup.4 --CO.sub.2 R.sup.5(IIb) and/orR.sup.1 CH.sub.2 --CHR.sup.2 --CR.sup.3 .dbd.CR.sup.4 --CO.sub.2 R.sup.5(IIc),where each of R.sup.1 to R.sup.4 is as defined above and R.sup.5 is C.sub.1 -C.sub.8 -alkyl, over an acidic heterogeneous catalyst at 50.degree.-800.degree. C. and 0.001-50 bar.

    摘要翻译: 通过将式IIa,IIb或IIc的羧酸酯R1CH = CR2-CHR3-CHR4转化成其中R 1至R 4各自独立地为氢或有机基团的式I(I)的环戊烯酮 -CO 2 R 5(IIa)和/或R 1 CH 2 -CR 2 = CR 3 -CHR 4 -CO 2 R 5(IIb)和/或R 1 CH 2 -CHR 2 -CR 3 = CR 4 -CO 2 R 5(IIc),其中R 1至R 4各自如上所定义, -C 1-8 - 烷基,在50-800℃和0.001-50巴的酸性非均相催化剂上。

    Preparation of cyclic 6-membered to 8-membered vinylene-1,2-dioxy
compounds
    4.
    发明授权
    Preparation of cyclic 6-membered to 8-membered vinylene-1,2-dioxy compounds 失效
    环状6元至8元亚乙烯基-1,2-二氧化合物的制备

    公开(公告)号:US5003089A

    公开(公告)日:1991-03-26

    申请号:US379412

    申请日:1989-07-13

    摘要: Cyclic 6-membered to 8-membered 1,2-vinylenedioxy compounds of the general formula I ##STR1## where A is ##STR2## R.sup.1 to R.sup.7 independently of one another are each hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.16 -alkoxyalkyl, C.sub.2 -C.sub.8 -alkenyl, C.sub.2 -C.sub.8 -alkynyl, C.sub.5 -C.sub.8 -cycloalkyl, aryl, C.sub.7 -C.sub.10 -alkylphenyl, C.sub.7 -C.sub.10 -phenalkyl, C.sub.8 -C.sub.10 -phenalkenyl or a heterocyclic structure, or R.sup.2 and R.sup.3, R.sup.2 and R.sup.4, R.sup.3 and R.sup.4, R.sup.2 and R.sup.6, R.sup.3 and R.sup.6, R.sup.4 and R.sup.5 or R.sup.6 and R.sup.7 together form a cycloaliphatic or heterocyclic ring, and R.sup.1 to R.sup.7 may furthermore carry substituents which are inert under the reaction conditions, and n is 0 or 1, are prepared by a process in which a cyclic 2-oxymethyl-1,3-dioxa compound or one of its derivatives of the general formula II ##STR3## where R.sup.1 to R.sup.7, A and n have the abovementioned meanings, and R.sup.8 is hydrogen or C.sub.1 -C.sub.12 -alkyl, is converted in the presence of an acidic catalyst at from 150.degree. to 450.degree. C. and under from 0.001 to 50 bar, some of the compounds obtained being novel.

    摘要翻译: 其中A为彼此独立的通式I(I)的环状6元至8元1,2-亚乙烯基二氧基化合物各自为氢,C 1 -C 8 - 烷基,C 2 -C 18 - C16 - 烷氧基烷基,C2-C8-烯基,C2-C8-炔基,C5-C8-环烷基,芳基,C7-C10-烷基苯基,C7-C10-苯基烷基,C8-C10-苯基烯基或杂环结构,或R2和R3 ,R 2和R 4,R 3和R 4,R 2和R 6,R 3和R 6,R 4和R 5或R 6和R 7共同形成脂环族或杂环,并且R 1至R 7还可以具有在反应条件下为惰性的取代基,n为 0或1的化合物通过其中R 1至R 7,A和n具有上述通式II的环状2-氧甲基-1,3-二氧杂化合物或其衍生物之一的方法制备 意义,R8是氢或C1-C12烷基,在酸性催化剂存在下,在150-450℃下,在0.001至50巴下进行转化,得到的一些化合物是新的。

    Conversion of 1,3-dioxanes to 4-oxaaldehydes
    7.
    发明授权
    Conversion of 1,3-dioxanes to 4-oxaaldehydes 失效
    1,3-二恶烷转化为4-氧杂醛

    公开(公告)号:US5012005A

    公开(公告)日:1991-04-30

    申请号:US385925

    申请日:1989-07-27

    摘要: 4-oxaaldehydes of the formula ##STR1## are prepared by catalytic isomerization of 1,3-dioxanes by a process in which a 1,3-dioxane of the formula ##STR2## where R.sup.1, R.sup.2, R.sup.4 and R.sup.5 are identical or different and are each hydrogen, a straight-chain or branched alkyl, alkenyl or alkynyl radical of not more than 18 carbon atoms, a cycloalkyl or cycloalkenyl radical of 5 to 8 carbon atoms, an aryl, alkylaryl, aralkyl, aralkenyl or alkenylaryl radical of 5 to 16 carbon atoms or a heterocyclic radical and furthermore R.sup.1 and R.sup.2 and/or R.sup.4 and R.sup.5 together with the carbon atoms to which they are bonded may form a cycloalkane, a cycloalkene or a heterocyclic structure, and the stated radicals may furthermore carry substituents which are inert under the reaction conditions, and R.sup.3 is hydrogen or straight-chain or branched alkyl, is isomerized using a metal oxide catalyst, which has been treated with an acid, and/or a silica phase having a zeolite structure.

    摘要翻译: 通过其中R1,R2,R4和R5是相同或不同的式“IMAGE”的1,3-二恶烷的方法,通过1,3-二恶烷的催化异构化制备式“IMAGE”的4-氧代醛, 各自为氢,不超过18个碳原子的直链或支链烷基,烯基或炔基,5至8个碳原子的环烷基或环烯基,芳基,烷基芳基,芳烷基,芳烯基或链烯基芳基,其5至 16个碳原子或杂环基团,此外,R 1和R 2和/或R 4和R 5与它们所键合的碳原子一起可以形成环烷烃,环烯烃或杂环结构,并且所述基团还可以具有取代基, 使用已用酸处理的金属氧化物催化剂和/或具有沸石结构的二氧化硅相异构化在反应条件下惰性的R 3为氢或直链或支链烷基。

    Preparation of olefinically unsaturated carboxylic esters having a
terminal ester group
    8.
    发明授权
    Preparation of olefinically unsaturated carboxylic esters having a terminal ester group 失效
    具有末端酯基的烯属不饱和羧酸酯的制备

    公开(公告)号:US4999453A

    公开(公告)日:1991-03-12

    申请号:US337867

    申请日:1989-04-14

    摘要: Olefinically unsaturated carboxylic esters having a terminal ester group and of the general formulae Ia and IbR.sup.1 --CH.sub.2 --CH.dbd.CH--(CH.sub.2).sub.r--1 --COOR.sup.2 (Ia)R.sup.1 --CH.dbd.CH--(CH.sub.2).sub.r --COOR.sup.2 (Ib)and, if desired, further double bond isomers, where R.sup.1 is hydrogen or an organic radical, R.sup.2 is C.sub.1 -C.sub.8 -alkyl and r is from 1 to 20, are prepared by a process in which an .alpha.-substituted .alpha.,.omega.-(n-alkylenedicarboxylic ester) of the general formula II ##STR1## where R.sup.1 and R.sup.2 and r have the abovementioned meanings and R.sup.3 is C.sub.1 -C.sub.8 -alkyl, is converted over an acidic heterogeneous catalyst at from 150.degree. to 800.degree. C. and under from 0.01 to 50 bar.

    摘要翻译: 具有末端酯基和通式Ia和Ib的烯属不饱和羧酸酯R1-CH2-CH = CH-(CH2)r-1-COOR2(Ia)R1-CH = CH-(CH2)r-COOR2(Ib ),并且如果需要,其中R 1是氢或有机基团的另外的双键异构体,R 2是C 1 -C 8 - 烷基,r是1至20,是通过以下方法制备的,其中α-取代的α,ω- 其中R 1和R 2和r具有上述含义,并且R 3是C 1 -C 8烷基的通式II(II)的(正 - 亚烷基二羧酸酯)在150至800℃的酸性非均相催化剂上转化 在0.01至50巴之间。