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134 条记录 (耗时 0.019 秒)

    Preparation of vinyl ethers
    1.
    发明授权
    Preparation of vinyl ethers 失效
    乙烯的制备

    公开(公告)号：US5130435A

    公开(公告)日：1992-07-14

    申请号：US565180

    申请日：1990-08-09

    申请人： Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer

    发明人： Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer

    IPC分类号： C07C41/28

    CPC分类号： C07C41/28 ,  Y02P20/582

    摘要： Vinyl ethers of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are identical to or different from one another, each being hydrogen, straight-chain or branched alkyl or alkenyl of up to 12 carbon atoms, cycloalkyl or cycloalkylene of from 5 to 8 carbon atoms, aryl, alkylaryl, alkenylaryl, aralkyl and aralkenyl of from 6 to 16 carbon atoms, halogen-substituted aryl or heterocyclyl, and in addition the radicals R.sup.1 and R.sup.2 or R.sup.1 and R.sup.3, together with the carbon atom to which they are bonded, can form a cycloalkane, cycloalkene or a heterocycle, and R.sup.4 is alkyl, alkylaryl or aralkyl, are prepared by eliminating an alcohol from an acetal/ketal of the formula ##STR2## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each as defined above, in the presence of a phosphate of zeolite structure and/or a precipitated phosphate of the elements B, Zr, Ce or Fe and/or phosphoric acid or boric acid on carrier material and/or acidic undoped metal oxide as catalyst, the reaction being preferably carried out in the gas phase.

    摘要翻译： 式中，R 1，R 2和R 3彼此相同或不同的乙烯基醚，各自为氢，直至12个碳原子的直链或支链烷基或烯基，5至8的环烷基或亚环烷基 碳原子，芳基，烷基芳基，烯基芳基，芳烷基和具有6至16个碳原子的芳烯基，卤素取代的芳基或杂环基，此外基团R 1和R 2或R 1和R 3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，并且R 4是烷基，烷基芳基或芳烷基，通过从式（I）的缩醛/缩酮中除去醇来制备，其中R 1，R 2，R 3和R 4各自如上所定义 在载体材料和/或酸性未掺杂的金属氧化物作为催化剂的沸石结构的磷酸盐和/或元素B，Zr，Ce或Fe和/或磷酸或硼酸的沉淀磷酸盐存在下，反应为 优选在气相中进行。

    Preparation of vinyl ethers
    2.
    发明授权
    Preparation of vinyl ethers 失效
    乙烯基醚的制备

    公开(公告)号：US4891451A

    公开(公告)日：1990-01-02

    申请号：US213589

    申请日：1988-06-30

    申请人： Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer

    发明人： Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer

    IPC分类号： C07C41/28

    CPC分类号： C07C41/28 ,  C07C2101/14 ,  Y02P20/582

    摘要： Vinyl ethers of the formula (I) ##STR1## where R.sup.1 to R.sup.3 are identical or different and are each hydrogen, a straight-chain or branched alkyl or alkenyl radical of not more than 12 carbon atoms, halogen-substituted alkyl, a cycloalkyl or cycloalkenyl radical of 5 to 8 carbon atoms, an aryl, alkylaryl, alkenylaryl, aralkyl or aralkenyl radical of 6 to 16 carbon atoms, halogen-substituted aryl or a heterocyclic radical and furthermore R.sup.1 and R.sup.2 or R.sup.1 and R.sup.3, together with the carbon atom to which they are bonded, may form a cycloalkane, cycloalkene or heterocyclic structure, and R.sup.4 is alkyl, alkylaryl or aralkyl, are prepared by a process in which an alcohol is eliminated from an acetal or ketal of the formula (II) ##STR2## where R.sup.1 to R.sup.4 have the above meanings, in the presence of borosilicate and/or iron silicate zeolites as catalysts.

    摘要翻译： 式（I）的乙烯基醚其中R 1至R 3相同或不同并且各自为氢，不超过12个碳原子的直链或支链烷基或烯基，卤素取代的烷基， 5至8个碳原子的环烷基或环烯基，6至16个碳原子的芳基，烷基芳基，烯基芳基，芳烷基或芳烯基，卤素取代的芳基或杂环基，此外R1和R2或R1和R3连同 其键合的碳原子可以通过其中从式（II）的缩醛或缩酮中除去醇的方法制备环烷烃，环烯烃或杂环结构，并且R 4是烷基，烷基芳基或芳烷基， 在有硼硅酸盐和/或铁硅酸盐沸石作为催化剂的情况下，R1至R4具有上述含义的图像（II）。

    Preparation of phenylacetaldehydes
    5.
    发明授权
    Preparation of phenylacetaldehydes 失效
    苯乙醛的制备

    公开(公告)号：US4990684A

    公开(公告)日：1991-02-05

    申请号：US378984

    申请日：1989-07-12

    申请人： Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer

    发明人： Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer

    IPC分类号： C07C45/51 ,  C07C45/52 ,  C07C45/54 ,  C07C45/58

    CPC分类号： C07C45/58 ,  C07C45/512 ,  C07C45/513 ,  C07C45/52 ,  C07C45/54 ,  Y02P20/582

    摘要： Phenylacetaldehydes of the general formula I ##STR1## where each of R.sup.1 to R.sup.5 is independently of the others hydrogen, halogen, unsubstituted or halogen-substituted alkyl, alkenyl, alkoxyl, alkylthio or cycloalkyl, are prepared by converting glycidic esters of the general formula II ##STR2## where each of R.sup.1 to R.sup.5 is as defined above and R.sup.6 is tertbutyl or i-propyl, in the presence of zeolites and/or phosphates and/or phosphoric or boric acid on a carrier material and/or acidic metal oxides as catalysts.

    摘要翻译： 通式Ⅰ（I）的苯基乙醛通过将式（I）的缩水甘油酯转化成其中R1至R5各自独立地为氢，卤素，未取代或卤素取代的烷基，烯基，烷氧基，烷硫基或环烷基， 在载体材料上的沸石和/或磷酸盐和/或磷酸或硼酸存在下，通式II（II）其中R 1至R 5各自如上所定义，R 6为叔丁基或异丙基，和/ 或酸性金属氧化物作为催化剂。

    Preparation of .alpha.-ketocarboxylic esters
    7.
    发明授权
    Preparation of .alpha.-ketocarboxylic esters 失效
    α-酮羧酸酯的制备

    公开(公告)号：US4968831A

    公开(公告)日：1990-11-06

    申请号：US323861

    申请日：1989-03-15

    申请人： Norbert Goetz ,  Wolfgang Hoelderich ,  Leopold Hupfer

    发明人： Norbert Goetz ,  Wolfgang Hoelderich ,  Leopold Hupfer

    IPC分类号： C07C67/313 ,  C07C69/738 ,  C07C69/76

    CPC分类号： C07C67/313 ,  C07C69/738

    摘要： .alpha.-Ketocarboxylic esters ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are identical to or different from one another and are each hydrogen or straight-chain or branched alkyl, alkenyl, hydroxyl, alkoxy cycloalkyl or halogen and R.sup.6 is unbranched lower alkyl, are prepared by reacting glycidic esters of the formula ##STR2## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each as defined above, in the presence of zeolites or phosphates and/or phosphoric acid or boric acid on a carrier material and/or acidic metal oxides as catalysts and are used for preparing phenylacetic esters.

    摘要翻译： α-酮羧酸酯，其中R 1，R 2，R 3，R 4和R 5彼此相同或不同，各自为氢或直链或支链烷基，烯基，羟基，烷氧基环烷基或卤素，R6为未分支的 烷基，通过在载体上的沸石或磷酸盐和/或磷酸或硼酸的存在下使式（I）的缩水甘油酯反应来制备，其中R 1，R 2，R 3，R 4，R 5和R 6各自如上所定义 材料和/或酸性金属氧化物作为催化剂，并用于制备苯乙酸酯。

    Preparation of 4-formyltetrahydropyrans
    8.
    发明授权
    Preparation of 4-formyltetrahydropyrans 失效
    4-甲酰基四氢吡喃的制备

    公开(公告)号：US4824973A

    公开(公告)日：1989-04-25

    申请号：US89752

    申请日：1987-08-26

    申请人： Wolfgang Spiegler ,  Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer ,  Jochen Wild

    发明人： Wolfgang Spiegler ,  Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer ,  Jochen Wild

    IPC分类号： A01N43/18 ,  B01J29/40 ,  B01J29/70 ,  B01J29/83 ,  B01J29/85 ,  B01J29/86 ,  C07D309/06 ,  C07D405/04 ,  C07D407/04 ,  C07D409/04 ,  C07D333/22

    CPC分类号： C07D309/06 ,  Y02P20/582

    摘要： 4-Formyltetrahydropyrans of the general formula I ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl, C.sub.1 -C.sub.6 -alkoxy-substituted C.sub.1 -C.sub.12 -alkyl, C.sub.4 -C.sub.12 -cycloalkyl, unsubstituted or substituted aryl, hetaryl or aralkyl, or an unsubstituted or substituted, saturated or unsaturated 5-membered or 6-membered ring which may be interrupted by N, O or S, are prepared by a process in which a pyran derivative of the general formula II ##STR2## where R.sup.1 is as defined above, R.sup.2 and R.sup.3 are each OH or together are an oxygen atom and thus form an oxirane ring, and R.sup.4 is hydrogen where R.sup.2 and R.sup.3 are each OH, and is hydrogen or tert-butoxycarbonyl where R.sup.2 and R.sup.3 together are an oxygen atom, is treated at elevated temperatures with a catalyst selected from the group consisting of zeolites, phosphates, boric acid on a carrier and silica or mixtures of these. Novel 4-formyltetrahydropyrans are also proposed.

    摘要翻译： 其中R 1是氢，C 1 -C 12烷基，C 2 -C 12链烯基，C 1 -C 6烷氧基取代的C 1 -C 12烷基，C 4 -C 12环烷基，C 1 -C 12 - 烷基， 未取代或取代的芳基，杂芳基或芳烷基，或可被N，O或S中断的未取代或取代的饱和或不饱和的5元或6元环，是通过一般方法制备的， 式II其中R 1如上所定义，R 2和R 3各自为OH或一起为氧原子，因此形成环氧乙烷环，并且R 4为氢，其中R 2和R 3各自为OH并且为氢或 叔丁氧基羰基，其中R 2和R 3一起是氧原子，在高温下用选自沸石，磷酸盐，载体上的硼酸和二氧化硅或它们的混合物的催化剂进行处理。 还提出了新的4-甲酰基四氢吡喃。

    Preparation of enol ethers
    9.
    发明授权
    Preparation of enol ethers 失效
    烯醇醚的制备

    公开(公告)号：US4960954A

    公开(公告)日：1990-10-02

    申请号：US329007

    申请日：1989-03-27

    申请人： Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer ,  Walter Himmele

    发明人： Wolfgang Hoelderich ,  Norbert Goetz ,  Leopold Hupfer ,  Walter Himmele

    IPC分类号： C07C41/48 ,  C07C45/49 ,  C07C47/198 ,  C07C67/327

    CPC分类号： C07C41/48 ,  C07C45/49 ,  C07C47/198 ,  C07C67/327 ,  Y02P20/582

    摘要： Enol ethers of the general formula I ##STR1## are prepared by eliminating the radical R.sup.4 OH from acetals or ketals of the formula II ##STR2## where the substituents R.sup.1 and R.sup.2 are each independently of the other hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.3 -C.sub.8 -cycloalkenyl, unsubstituted or C.sub.1 -C.sub.4 -alkyl-substituted aryl or C.sub.7 -C.sub.16 aralkyl,R.sup.3 is --CR.sup.5 (OR.sup.4).sub.2, --COOR.sup.4 or --COR.sup.4,R.sup.4 is C.sub.1 -C.sub.20 -alkyl, C.sub.7 -C.sub.20 -alkylaryl or C.sub.7 -C.sub.20 -aralkyl,R.sup.5 is hydrogen or C.sub.1 -C.sub.8 -alkyl,in a process which comprises performing the reaction in the presence of phosphoric acid and/or phosphates on a carrier material and/or phosphates and/or zeolites as catalysts.

    摘要翻译： 通式I（I）的烯醇醚通过从式II（II）的缩醛或缩酮中除去基团R 4 OH来制备，其中取代基R 1和R 2各自独立地为氢，C1- C 1 -C 8烷基，C 3 -C 8环烷基，C 3 -C 8 - 环烯基，未取代的或C 1 -C 4烷基取代的芳基或C 7 -C 16芳烷基，R 3是-CR 5（OR 4）2，-COOR 4或-COR 4， - 烷基，C 7 -C 20 - 烷基芳基或C 7 -C 20 - 芳烷基，R 5是氢或C 1 -C 8 - 烷基，其包括在载体材料上的磷酸和/或磷酸盐存在下进行反应和/或 磷酸盐和/或沸石作为催化剂。