Method of making methacrylamides
    4.
    发明授权
    Method of making methacrylamides 失效
    制备甲基丙烯酰胺的方法

    公开(公告)号:US4675442A

    公开(公告)日:1987-06-23

    申请号:US709343

    申请日:1985-03-06

    CPC分类号: C07C231/02

    摘要: What is disclosed is a method for making an amide of acrylic acid or of methacrylic acid by the reaction of an alkyl ester of acrylic acid or of methacrylic acid with an amine at a temperature between 50.degree. C. and 180.degree. C., whereby the reaction with the amine is carried out in the presence of a catalytic amount of a compound of a metal of Group IVB of the periodic table of the elements or of a compound of lead, zinc, or tantalum.

    摘要翻译: 公开的是通过丙烯酸或甲基丙烯酸的烷基酯与胺在50℃至180℃的温度下反应制备丙烯酸或甲基丙烯酸的酰胺的方法,其中 与胺的反应在催化量的元素周期表第IVB族金属化合物或铅,锌或钽化合物的存在下进行。

    Polyarylene esters containing phosphorus
    5.
    发明授权
    Polyarylene esters containing phosphorus 失效
    含聚磷脂的聚亚芳基酯

    公开(公告)号:US4472570A

    公开(公告)日:1984-09-18

    申请号:US516046

    申请日:1983-07-22

    CPC分类号: C08G63/6926

    摘要: What are disclosed are resinous polyarylene esters containing more than 1 percent by weight of phosphorus and having the formula--CO--A--CO--O--B--O.sub.n, wherein B is a bivalent aromatic group and A represents at least in part--phenylene--P(O).sub.x (R)--phenylene--,wherein R is lower alkyl or aryl and x is 0 or 1, the rest, if any, of A having the formula given for B, which esters have decomposition temperatures of at least 450.degree. C. and can be sintered or thermoplastically processed into sheets or other shapes having good self-extinguishing properties.

    摘要翻译: 所公开的是含有超过1重量%磷并且具有式-CO-A-CO-OB-On的树脂聚亚芳基酯,其中B是二价芳族基团,A代表至少部分亚苯基-P( O)x(R) - 亚苯基 - ,其中R是低级烷基或芳基,x是0或1,剩余部分(如果有的话)具有B给出的分子式,该酯的分解温度至少为450℃ 并且可以烧结或热塑性加工成具有良好自熄性的片材或其它形状。

    Method for making isobutyric acid
    6.
    发明授权
    Method for making isobutyric acid 失效
    制备异丁酸的方法

    公开(公告)号:US4452999A

    公开(公告)日:1984-06-05

    申请号:US380609

    申请日:1982-05-21

    IPC分类号: C07C51/14 C07C67/38

    CPC分类号: C07C51/14 C07C67/38

    摘要: What is disclosed is a continuous one-step method for the preparation of isobutyric acid or a lower alkyl ester thereof by the Koch synthesis, which method comprises reacting propylene, carbon monoxide, and water or a lower alcohol, in the gaseous and liquid phases, in the presence of hydrogen fluoride as a Koch catalyst, at a temperature between 80.degree. C. and 160.degree. C., at a dwell time of the liquid phase of less than 20 minutes, and with a high degree of backmixing, while maintaining the content of propylene in the reaction mixture at less than one percent by weight of the liquid phase, wherein all or part of the propylene, carbon monoxide, and water or lower alcohol can be replaced by binary addition compounds formed pairwise between these materials. In the alternative, isopropylformiate can be continuously rearranged in the presence of hydrogen fluoride to produce isobutyric acid.

    摘要翻译: 所公开的是通过Koch合成制备异丁酸或其低级烷基酯的连续一步法,该方法包括在气相和液相中使丙烯,一氧化碳和水或低级醇反应, 在作为Koch催化剂的氟化氢的存在下,在80℃至160℃的温度下,在液相的停留时间小于20分钟,并具有高度的回混,同时保持 反应混合物中丙烯的含量小于液相的1重量%,其中全部或部分丙烯,一氧化碳和水或低级醇可以由在这些材料之间成对形成的二元加成化合物代替。 在替代方案中,异丙基甲酸酯可以在氟化氢的存在下连续重排以产生异丁酸。

    Method for making isobutyric acid
    7.
    发明授权
    Method for making isobutyric acid 失效
    制备异丁酸的方法

    公开(公告)号:US4647696A

    公开(公告)日:1987-03-03

    申请号:US474799

    申请日:1983-03-14

    CPC分类号: C07C51/14 C07C67/38

    摘要: What is disclosed is a continuous one-step method for the preparation of isobutyric acid or a lower alkyl ester thereof by the Koch synthesis, which method comprises reacting propylene, carbon monoxide, and water or a lower alcohol, in the gaseous and liquid phases, in the presence of hydrogen fluoride as a Koch catalyst, at a temperature between 80.degree. C. and 160.degree. C., at a dwell time of the liquid phase of less than 20 minutes, and with a high degree of backmixing, while maintaining the content of propylene in the reaction mixture at less than one percent by weight of the liquid phase, wherein all or part of the propylene, carbon monoxide, and water or lower alcohol can be replaced by binary addition compounds formed pairwise between these materials. In the alternative, isopropylformiate can be continuously rearranged in the presence of hydrogen fluoride to produce isobutyric acid.

    摘要翻译: 所公开的是通过Koch合成制备异丁酸或其低级烷基酯的连续一步法,该方法包括在气相和液相中使丙烯,一氧化碳和水或低级醇反应, 在作为Koch催化剂的氟化氢的存在下,在80℃至160℃的温度下,在液相的停留时间小于20分钟,并具有高度的回混,同时保持 反应混合物中丙烯的含量小于液相的1重量%,其中全部或部分丙烯,一氧化碳和水或低级醇可以由这些材料成对形成的二元加成化合物代替。 在替代方案中,异丙基甲酸酯可以在氟化氢的存在下连续重排以产生异丁酸。

    Polyarylene esters containing phosphorus
    8.
    发明授权
    Polyarylene esters containing phosphorus 失效
    含聚磷脂的聚亚芳基酯

    公开(公告)号:US4463159A

    公开(公告)日:1984-07-31

    申请号:US499526

    申请日:1983-05-31

    CPC分类号: C08G63/6926 C07F9/5325

    摘要: What are disclosed are phosphorus-containing polyarylene esters,--O--A--O--CO--B--CO].sub.n,wherein A represents at least in part groups of the structure ##STR1## wherein x is 0 or 1 and R is aromatic or aliphatic, and wherein B represents either two different aromatic groups or at least one group with the structure --C.sub.6 H.sub.4 --R'--C.sub.6 H.sub.4 --, wherein R' is a bridging link of the group --O--, --S--, --SO.sub.2 --, --CO--, or isopropylidene, and wherein n is greater than 20, which esters have a phosphorus content of over 1 weight percent, are distinguished by improved thermoplastic processability, and are prepared by condensation of HO--A--OH, for example with ClCO--B--COCl in the presence of a base.

    摘要翻译: 所公开的是含磷聚亚芳基酯-OAO-CO-B-CO] n,其中A表示至少部分结构单元组,其中x是0或1,R是芳族或脂族的,其中 B表示两个不同的芳族基团或至少一个具有结构-C 6 H 4 -R'-C 6 H 4 - 的基团,其中R'是-O - , - S - , - SO 2 - , - CO- 或异丙叉,并且其中n大于20,所述酯的磷含量大于1重量%,其特征在于改进的热塑性加工性,并且通过HO-A-OH例如与ClCO-B-COCl 在一个基地的存在。

    Preparation of carboxylic acid amides
    9.
    发明授权
    Preparation of carboxylic acid amides 失效
    羧酸酰胺的制备

    公开(公告)号:US4228102A

    公开(公告)日:1980-10-14

    申请号:US14361

    申请日:1979-02-23

    CPC分类号: C07C231/02

    摘要: What is disclosed is a method for making amides of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl,R.sub.3 is straight-chain or branched alkyl or unsubstituted or substituted aryl, andR.sub.4 is hydrogen or straight-chain or branched unsubstituted or substituted alkyl, which comprises reacting an ester of the formula ##STR2## wherein R.sub.2 is alkyl having 1 to 6 carbon atoms, with heating and under autogenous pressure, in a homogeneous phase, with an amine of the formula ##STR3## said amine being present in an amount which is stoichiometrically deficient up to an amount which is in small stoichiometric excess with respect to said ester.

    摘要翻译: 所公开的是制备式IMA的酰胺的方法,其中R1是氢或甲基,R3是直链或支链烷基或未取代或取代的芳基,R4是氢或直链或支链的未取代或取代的烷基 该方法包括使下式的化合物(其中R 2为具有1至6个碳原子的烷基)在加热和自生压力下在均相中与下式的胺反应:所述胺存在于 化学计量不足量至相对于所述酯具有小的化学计量过量的量。