Method for the production of N-alkenyl-amides
    1.
    发明授权
    Method for the production of N-alkenyl-amides 失效
    制备N-烯基酰胺的方法

    公开(公告)号:US06673920B2

    公开(公告)日:2004-01-06

    申请号:US10168211

    申请日:2002-06-19

    IPC分类号: C07D22310

    摘要: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst diols of the general formula (I) where X is branched or unbranched alkylene selected from the group consisting of where R1 to R6 are independently hydrogen or C1- to C4-alkyl; or branched or unbranched cyclic alkylene of 3 to 14 carbon atoms including 3 to 12 ring carbon atoms, their monoalkenyl ethers, their dialkenyl ethers or mixtures thereof.

    摘要翻译: 在碱性碱金属化合物和助催化剂存在下,通过使液相中相应的NH-酰胺与乙炔反应来制备N-烯基酰胺的方法包括使用通式(I)的助催化剂二醇,其中X支化 或非支链的亚烷基,其中R 1至R 6独立地为氢或C 1至C 4 - 烷基;包含3至12个环碳原子的3至14个碳原子的支链或非支链环状亚烷基,它们的单链烯基醚,它们的二链烯基醚或 其混合物。

    Method for producing N-alkenyl amides
    3.
    发明授权
    Method for producing N-alkenyl amides 失效
    制备N-烯基酰胺的方法

    公开(公告)号:US06624303B2

    公开(公告)日:2003-09-23

    申请号:US10168213

    申请日:2002-06-19

    IPC分类号: C07D22310

    摘要: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst compounds of the general formulae (Ia) and/or (Ib) R1O—(CH2CH2CH2CH2O)n—H  (Ia): R1O—(CH2CH2CH2CH2O)n—R2,  (Ib): where n is 1, 2 or 3 and R1 and R2 are independently C1- to C6-alkyl or C2- to C6-alkenyl, or together a butenyl unit.

    摘要翻译: 在碱性碱金属化合物和助催化剂存在下,通过使相应的NH-酰胺与乙炔在液相中反应来制备N-烯基酰胺的方法包括使用通式(Ia)和/或 (Ib)其中n为1,2或3,R 1和R 2独立地为C 1 -C 6 - 烷基或C 2 -C 6 - 烯基,或一起为丁烯基单元。

    Purification of alkenyl compounds
    4.
    发明授权
    Purification of alkenyl compounds 失效
    链烯基化合物的纯化

    公开(公告)号:US06384216B1

    公开(公告)日:2002-05-07

    申请号:US09924475

    申请日:2001-08-09

    IPC分类号: C07C20984

    摘要: A process for purifying alkenyl compounds having a divalent or trivalent heteroatom in the &agr;-position relative to the double bond by distillation comprises carrying out at least two distillations in which the purified alkenyl compounds are obtained from the gas phase by condensation, where the time between the first distillation after the synthesis of the alkenyl compounds and at least one further distillation is at least one day and the purified alkenyl compounds have an APHA color number of

    摘要翻译: 通过蒸馏纯化在相对于双键的α位具有二价或三价杂原子的烯基化合物的方法包括进行至少两次蒸馏,其中通过冷凝从气相中获得纯化的链烯基化合物,其中, 在合成烯基化合物之后的第一次蒸馏和至少一次进一步的蒸馏是至少一天,并且纯化的烯基化合物的APHA颜色数目<30。

    Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores

    公开(公告)号:US06284917B1

    公开(公告)日:2001-09-04

    申请号:US09581843

    申请日:2000-06-19

    IPC分类号: C07C6974

    摘要: A process for hydrogenating a benzenepolycarboxylic acid or a derivative thereof or a mixture of two or more thereof by bringing the benzenepolycarboxylic acid or the derivative thereof or the mixture of two or more thereof into contact with a hydrogen-containing gas is carried out in the presence of a catalyst which comprises as active metal at least one metal of transition group VIII of the Periodic Table alone or together with at least one metal of transition group I or VII of the periodic table applied to a support which contains macropores with the proviso that if dimethyl terephthalate is hydrogenated, the hydrogenation using a catalyst which comprises as active metal ruthenium either alone or together with at least one metal of transition group I, VII or VIII of the Periodic Table applied to a support, where the support has a mean pore diameter of at least 50 nm and a BET surface area of at most 30 m2/g and the amount of the active metal is from 0.01 to 30% by weight, based on the total weight of the catalyst, and the ratio of the surface areas of the active metal and the catalyst support is less than 0.05, and/or a catalyst which comprises as active metal ruthenium either alone or together with at least one metal of transition group I, VII or VIII of the Periodic Table in an amount of from 0.01 to 30% by weight, based on the total weight of the catalyst, applied to a support, where from 10 to 50% of the pore volume of the support is formed by macropores having a pore diameter in the range from 50 nm to 10,000 nm and from 50 to 90% of the pore volume of the support is formed by mesopores having a pore diameter in the range from 2 to 50 nm, where the sum of the pore volumes adds up to 100%, is excluded, and novel hydrogenation products, obtainable by hydrogenating benzenepolycarboxylic acid (derivatives) as well as their use as plasticizers in plastics.

    Preparation of pyrrole and pyridine
    9.
    发明授权
    Preparation of pyrrole and pyridine 有权
    制备吡咯和吡啶

    公开(公告)号:US06538139B1

    公开(公告)日:2003-03-25

    申请号:US10234169

    申请日:2002-09-05

    IPC分类号: C07D213133

    摘要: Pyrroles of the formula (I) are prepared by dehydrogenating pyrrolidines of the formula (II) where R1 and R2, independently of one another, are hydrogen or an aliphatic radical of 1 to 6 carbon atoms, or pyridines of the formula (III) are prepared by dehydrogenating piperidines of the formula (IV) where R3, R4 and R5, independently of one another, are hydrogen or an aliphatic radical of 1 to 6 carbon atoms, in the presence of a supported noble metal catalyst, by a process in which the dehydrogenation is carried out in the presence of from 1 to 50% by weight, based on the pyrrolidine or piperidine and water, of water.

    摘要翻译: 式(I)的吡咯通过使式(II)的吡咯烷脱氢制备,其中R1和R2彼此独立地是氢或具有1至6个碳原子的脂肪族基团,或者制备式(III)的吡啶 通过使负载型贵金属催化剂存在下,式(IV)的哌啶脱氢,其中R 3,R 4和R 5彼此独立地是氢或1-6个碳原子的脂族基团,其中脱氢 在1至50重量%的存在下,基于吡咯烷或哌啶和水的水进行。