Obtaining alkanals having a 2-alkyl branch from alkanal mixtures
    42.
    发明授权
    Obtaining alkanals having a 2-alkyl branch from alkanal mixtures 失效
    从链烷醇混合物中获得具有2-烷基支链的链烷烃

    公开(公告)号:US5026920A

    公开(公告)日:1991-06-25

    申请号:US433661

    申请日:1989-11-08

    摘要: Alkanals having a 2-alkyl branch are obtained from mixtures which contain the alkanals having a 2-alkyl branch in addition to n-alkanals, 3-alkylalkanals and/or further isomers by a process in whicha) the alkanal mixture is reacted with an aqueous formaldehyde solution in the presence of a secondary amine and of a carboxylic acid as a catalyst,b) the aqueous phase containing the catalyst and any unconverted excess formaldehyde is separated off andc) the alkanals having a 2-alkyl branch are isolated by distillation from the condensates of the other alkanals with formaldehyde.

    摘要翻译: 具有2-烷基支链的烷烃由含有具有2-烷基支链的亚烷基的链烷烃,3-烷基链烷醇和/或其它异构体的混合物通过以下方法获得:其中a)使所述链烷醛混合物与 在仲胺和羧酸作为催化剂存在下的甲醛水溶液,b)分离含有催化剂和任何未转化的过量甲醛的水相,并且c)通过蒸馏分离具有2-烷基支链的链烷烃 从其他链烷烃与甲醛的缩合物。

    Preparation of cyclic 6-membered to 8-membered vinylene-1,2-dioxy
compounds
    43.
    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。

    Preparation of caprolactam
    44.
    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
    45.
    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 storage-stable, moisture-cured, single-component
polyurethane systems and their uses
    46.
    发明授权
    Preparation of storage-stable, moisture-cured, single-component polyurethane systems and their uses 失效
    储存稳定,湿固化的单组分聚氨酯体系及其用途的制备

    公开(公告)号:US4853454A

    公开(公告)日:1989-08-01

    申请号:US76865

    申请日:1987-07-23

    IPC分类号: C08G18/10 C08G18/12 C08G18/76

    CPC分类号: C08G18/76 C08G18/10 C08G18/12

    摘要: A storage-stable, moisture-cured, single-component polyurethane system comprising(a) a polyurethane prepolymer having an NCO content of from about 1 to 10 weight percent prepared by the reaction of higher molecular polyols and aromatic polyisocyanates,(b) at least one polyaldimine having the structural formula ##STR1## in which R is a multivalent linear or branched or cyclic hydrocarbon radical, which optionally is interrupted by alkylene-, sulfonyl-, thio- and/or oxy groups as bridge members, or is a multivalent polyoxyalkylene radical,(c) optionally an aromatic and/or aliphatic carboxylic acid or arylsulfonic acid, and(d) optionally auxiliaries and/or additives.The polyurethane systems are useful as sealing, casting, patching, cementing and coating compounds.

    摘要翻译: 一种储存稳定的,湿固化的单组分聚氨酯体系,其包含(a)通过高分子多元醇和芳族多异氰酸酯的反应制备的NCO含量为约1-10重量%的聚氨酯预聚物,(b)至少 一种具有结构式为其中R为多价直链或支链或环状烃基的结构式的聚醛亚胺,其任选被亚烷基,磺酰基,硫代和/或氧基作为桥连构件中断,或者是 多价聚氧化烯基,(c)任选的芳族和/或脂族羧酸或芳基磺酸,和(d)任选的助剂和/或添加剂。 聚氨酯系统可用作密封,铸造,修补,固井和涂料化合物。

    Preparation of 2,2-disubstituted 3-chloropropionic esters
    47.
    发明授权
    Preparation of 2,2-disubstituted 3-chloropropionic esters 失效
    2,2-二取代的3-氯丙酸酯的制备

    公开(公告)号:US4837357A

    公开(公告)日:1989-06-06

    申请号:US111624

    申请日:1987-10-21

    摘要: 2,2-Disubstituted 3-chloropropionic esters I ##STR1## where R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -oxaalkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -oxaalkenyl, aryl or C.sub.7 -C.sub.12 -aralkyl or R.sup.1 -C-R.sup.2 is 5-, 6- or 7-membered ring, R.sup.3 is C.sub.2 -C.sub.6 -oxaalkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -oxaalkenyl or C.sub.7 -C.sub.12 -aralkyl, are prepared by converting 2,2-disubstituted 3-hydroxypropanals II ##STR2## into the esterdiol III ##STR3## reacting this esterdiol III in the presence of a transesterification catalyst with an alcohol R.sup.3 OH to give the 3-hydroxyester IV ##STR4## reacting the hydroxyester IV with a stoichiometric or greater than stoichiometric amount of the thionyl chloride and thermally decomposing the product to give the chloropropionic ester I.

    摘要翻译: 2,2-二取代的3-氯丙酸酯I,其中R 1和R 2各自是C 1 -C 6 - 烷基,C 2 -C 6 - 氧杂烷基,C 2 -C 6 - 烯基,C 2 -C 6 - 氧杂链烯基,芳基或C 7 -C 12 - 芳烷基或R1-C-R2是5-,6-或7-元环,R3是C2-C6-氧杂烷基,C2-C6-烯基,C2-C6-氧杂链烯基或C7-C12-芳烷基,是通过将2 将2-二取代的3-羟基丙醛II转化成酯二醇III在酯交换催化剂与醇R 3 OH的存在下使该酯二醇III反应,得到3-羟基酯IV使羟基酯IV 化学计量或大于化学计量的亚硫酰氯,并热分解产物得到氯丙酸酯I.

    Method of preparation of novel
2-(alkoxymethyl)-pentane-1,5-diisocyanates,
2-(alkoxymethyl)-pentane-1,5-diurethanes, and
2-(alkoxymethyl)-pentane-1,5-dicarbamic acid chlorides and their uses
    48.
    发明授权
    Method of preparation of novel 2-(alkoxymethyl)-pentane-1,5-diisocyanates, 2-(alkoxymethyl)-pentane-1,5-diurethanes, and 2-(alkoxymethyl)-pentane-1,5-dicarbamic acid chlorides and their uses 失效
    2-(烷氧基甲基) - 戊烷-1,5-二异氰酸酯,2-(烷氧基甲基) - 戊烷-1,5-二氨基甲酸酯和2-(烷氧基甲基) - 戊烷-1,5-二氨基酰氯的制备方法和 他们的用途

    公开(公告)号:US4748226A

    公开(公告)日:1988-05-31

    申请号:US97505

    申请日:1987-09-16

    摘要: This invention relates to novel 2-(alkoxymethyl) pentane-1,5-diisocyanates, 2-(alkoxymethyl)-pentane-1,5-diurethanes, and 2-(alkoxymethyl)-pentane 1,5-dicarbamic acid chlorides having the structure: ##STR1## in which R is a straight chain or branched C.sub.1 -C.sub.20 -alkyl radical, a straight chain or branched C.sub.2 -C.sub.20 -alkenyl radical, a straight chain or branched C.sub.3 -C.sub.20 -oxaalkyl radical, an optionally substituted C.sub.5 -C.sub.12 -cycloalkyl radical, or an optionally substituted C.sub.7 -C.sub.20 -aralkyl radical and X is a --NCO--, --NH--CO.sub.2 R.sup.1 --, --NHCO.sub.2 R.sup.2 -- OR - NHCOCl-group whereby R.sup.1 and R.sup.2 can be the same or different and are a straight chain or branched C.sub.1 -C.sub.20 -alkyl radical or a C.sub.5 -C.sub.12 cycloalkyl radical, as well as a process for their preparation. The 2-(alkoxymethyl)-pentane-1,5-diurethanes or 2- (alkoxymethyl)-pentane-1,5-dicarbamic acid chlorides are suited for the preparation of 2-(alkoxymethyl)-pentane-1,5-diisocyanates, which in turn are used for the preparation of plastics using the polyisocyanate addition polymerization process.

    摘要翻译: 本发明涉及新型2-(烷氧基甲基)戊烷-1,5-二异氰酸酯,2-(烷氧基甲基) - 戊烷-1,5-二氨基甲酸酯和2-(烷氧基甲基) - 戊烷1,5-二氨基甲酰氯, :其中R是直链或支链C 1 -C 20烷基,直链或支链C 2 -C 20 - 烯基,直链或支链C 3 -C 20 - 氧杂烷基,任选取代的C 5 -C 12 - 环烷基或任选取代的C 7 -C 20 - 芳烷基,X是-NCO - , - NH-CO 2 R 1 - , - NHCO 2 R 2 - 或 - NHCOCl-基,其中R 1和R 2可以相同或不同,并且是直链 链或支链C1-C20烷基或C5-C12环烷基,以及它们的制备方法。 2-(烷氧基甲基) - 戊烷-1,5-二氨基甲酸酯或2-(烷氧基甲基) - 戊烷-1,5-二氨基酰氯适于制备2-(烷氧基甲基) - 戊烷-1,5-二异氰酸酯, 其又用于使用多异氰酸酯加成聚合方法制备塑料。

    Multiple-step process for the preparation of hexamethylene
diisocyanate-1,6 and/or isomeric aliphatic diisocyanates with six
carbon atoms in the alkylene residue
    50.
    发明授权
    Multiple-step process for the preparation of hexamethylene diisocyanate-1,6 and/or isomeric aliphatic diisocyanates with six carbon atoms in the alkylene residue 失效
    用于制备在亚烷基残基中具有6个碳原子的六亚甲基二异氰酸酯-1,6-和/或异构脂族二异氰酸酯的多步法

    公开(公告)号:US4596678A

    公开(公告)日:1986-06-24

    申请号:US600143

    申请日:1984-04-13

    CPC分类号: C07C263/04

    摘要: Hexamethylene diisocyanate and/or isomeric alkylene diisocyanates having 6 carbon atoms in the alkylene radical, preferably 2-methylpentamethylene 1,5-diisocyanate and/or 2-ethyltetramethylene 1,4-diisocyanate are prepared without the use of phosgene in a multiple-step process by means of(a) reacting hexamethylene 1,6-diamine and/or isomeric alkylene diamines having 6 carbon atoms in the alkylene radical with urea and alcohol in the presence of dialkyl carbonate and/or carbamic acid alkyl ester as well as, in some cases, catalysts to form hexamethylene 1,6-dialkylurethane and/or isomeric alkylene dialkylurethanes having 6 carbon atoms in the alkylene radical,(b) separation and return to reaction step (a) of alcohol, dialkyl carbonate, and/or carbamic acid alkyl ester from the reaction mixture(c) evaporation of the hexamethylene 1,6-dialkylurethane and/or isomeric alkylene dialkylurethanes having 6 carbon atoms in the alkylene radical,(d) cleavage of the vaporized diurethanes into hexamethylene diisocyanate and/or isomeric alkylene diisocyanate having 6 carbon atoms in the alkylene radical and alcohol, and(e) fractional condensation of the cleavage products.

    摘要翻译: 在多步法中不使用光气制备在亚烷基中具有6个碳原子的六亚甲基二异氰酸酯和/或异构亚烷基二异氰酸酯,优选2-甲基五亚甲基-1,5-二异氰酸酯和/或2-乙基四亚甲基1,4-二异氰酸酯 通过(a)在碳酸二烷基酯和/或氨基甲酸烷基酯的存在下,使亚烷基中的六亚甲基1,6-二胺和/或具有6个碳原子的异构亚烷基二胺与脲和醇反应,以及在一些 情况下,在亚烷基中形成具有6个碳原子的六亚甲基1,6-二烷基氨基甲酸酯和/或异构亚烷基二烷基氨基甲酸酯的催化剂,(b)分离并返回到醇,碳酸二烷基酯和/或氨基甲酸烷基酯的反应步骤(a) (c)在亚烷基中蒸发具有6个碳原子的六亚甲基1,6-二烷基氨基甲酸酯和/或异构亚烷基二烷基氨基甲酸酯,(d)将汽化的二氨基甲酸酯裂解成h 亚烷基二异氰酸酯和/或亚烷基和醇中具有6个碳原子的异构亚烷基二异氰酸酯,和(e)裂解产物的分级缩合。