Monomer precursor isomerization
    2.
    发明授权
    Monomer precursor isomerization 失效
    单体前体异构化

    公开(公告)号:US5523422A

    公开(公告)日:1996-06-04

    申请号:US323319

    申请日:1994-10-14

    CPC分类号: C07D317/42

    摘要: A process is disclosed for producing a 2,2-bis-substituted-trans-4,5-dichloro-4,5-difluorodioxolane of the formula ##STR1## wherein R.sub.f is selected from the group consisting of --R.sup.2.sub.f, --F, --C(O)F, --C(O)OR and R.sup.3.sub.f Q, and wherein R.sup.1.sub.f is selected from the group consisting of --F and --R.sup.2.sub.f ; wherein R.sup.2.sub.f is a perfluorinated linear or branched alkyl group having 1 to 14 carbon atoms, optionally containing ether oxygen, which is terminally substituted with --F, --Cl, --Br, --OR, --OC.sub.6 F.sub.5, --SO.sub.2 F, --N.sub.3, --CN, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --SO.sub.2 Cl, --C(O)Cl or --C(O)F, wherein R is selected from the group consisting of --CH.sub.3, --C.sub.2 H.sub.5 and --CH.sub.2 CF.sub.3, wherein R.sup.3.sub.f is a single bond or a perfluoroalkylene group having from 1 to 4 carbon atoms optionally containing ether oxygen, and wherein Q is ##STR2## by isomerizing a 2,2-bis-substituted-cis-4,5-dichloro-4,5-difluorodioxolane of the same formula in the presence of a catalyst of the formula AlZ.sub.3, where Z is F, Cl, and/or Br, provided that AlZ.sub.3 is not entirely AlF.sub.3. Also disclosed is a process for producing an olefinic monomer by dechlorinating the trans-isomer products produced by said isomerization.

    摘要翻译: 公开了用于制备式(IMAGE)的2,2-二取代 - 反-4,5-二氯-4,5-二氟代二氧杂环戊烷的方法,其中R f选自-R 2 f,-F, - C(O)F,-C(O)OR和R 3fQ,并且其中R 1f选自-F和-R 2f; 其中R2f是具有1至14个碳原子的全氟化直链或支链烷基,任选地含有醚氧,其被-F,-Cl,-Br,-OR,-OC 6 F 5,-SO 2 F,-N 3,-CN ,-COOCH 3,-COOC 2 H 5,-SO 2 Cl,-C(O)Cl或-C(O)F,其中R选自-CH 3,-C 2 H 5和-CH 2 CF 3,其中R 3f是单键或 具有1至4个碳原子的全氟亚烷基任选地含有醚氧,并且其中Q是通过将相同式的2,2-双取代的顺式-4,5-二氯-4,5-二氟代二氧杂环戊烷异构化为 存在式AlZ 3的催化剂,其中Z为F,Cl和/或Br,条件是AlZ 3不完全为AlF 3。 还公开了通过使由所述异构化产生的反式异构体产物脱氯来制备烯烃单体的方法。

    Process for the preparation of halogenated
2,2-bis(trifluoromethyl)-1,3-dioxolanes
    4.
    发明授权
    Process for the preparation of halogenated 2,2-bis(trifluoromethyl)-1,3-dioxolanes 失效
    卤代2,2-双(三氟甲基)-1,3-二氧戊环的制备方法

    公开(公告)号:US5286824A

    公开(公告)日:1994-02-15

    申请号:US961985

    申请日:1992-10-16

    IPC分类号: C07D317/42 C08F16/24

    CPC分类号: C07D317/42

    摘要: A process for the production of a halogenated 2,2-bis(trihaloalkyl)-1, 3-dioxolane of the formula ##STR1## wherein R.sub.f is perhaloalkyl comprising a 2,2-bis(trihaloalkyl)-1,3-dioxolane in the presence of at least one of La, Ni, Sn, Zn Fe, Co or Cu is disclosed.A process for the production of a halogenated 2,2-bis(trihaloalkyl)-1,3-dioxolane of the formula ##STR2## wherein X is Cl and each Y is independently Cl or F and wherein at least one Y is F, comprising fluorinating a halogenated 2,2-bis(trifluoromethyl)-4,4,5,5-tetrachloro-1,3-dioxolane in the presence of a catalyst which is preferably Cr.sub.2 O.sub.3 is disclosed.A process for the production of a 2,2-bis(trihaloalkyl)-1,3-dioxole of the formula ##STR3## comprising dehalogenating substantially only a corresponding trans-2,2-bis(perhaloalkyl)-4,5-difluoro-4, 5-dichloro-1,3-dioxolane is disclosed.

    摘要翻译: 制备下式的卤化2,2-二(三卤代烷基)-1,3-二氧戊环的方法,其中Rf是包含2,2-二(三卤代烷基)-1,3-二氧戊环的全卤代烷基,其中 公开了La,Ni,Sn,ZnFe,Co或Cu中的至少一种的存在。 一种制备式IMA的卤代2,2-双(三卤代烷基)-1,3-二氧戊环的方法,其中X是Cl并且每个Y独立地是Cl或F,并且其中至少一个Y是F,包括 公开了在优选为Cr 2 O 3的催化剂存在下氟化卤代2,2-双(三氟甲基)-4,4,5,5-四氯-1,3-二氧戊环。 一种制备式“IMAGE”的2,2-双(三卤代烷基)-1,3-二氧杂环戊烯的方法,包括基本上仅脱除相应的反式2,2-双(全卤代烷基)-4,5-二氟 - 公开了4,5-二氯-1,3-二氧戊环。

    2,3-Dibromo-pentafluoropropyl fluorosulfate
    5.
    发明授权
    2,3-Dibromo-pentafluoropropyl fluorosulfate 失效
    2,3-二溴 - 五氟丙基氟硫酸盐

    公开(公告)号:US4567003A

    公开(公告)日:1986-01-28

    申请号:US592919

    申请日:1984-03-22

    申请人: Paul R. Resnick

    发明人: Paul R. Resnick

    摘要: Alkyl esters of CF.sub.2 .dbd.CFCOOH can be prepared from CF.sub.2 .dbd.CFCF.sub.2 OSO.sub.2 F by addition of bromine, reaction with F.sup.- to give CF.sub.2 BrCFBrCOF, esterification, and removal of bromine with zinc dust.

    摘要翻译: CF2 = CFCOOH的烷基酯可以通过加入溴由CF2 = CFCF2OSO2F制备,与F-反应得到CF2BrCFBrCOF,酯化,用锌粉去除溴。

    Alkyl-.omega.-fluoroformyl ester and process
    6.
    发明授权
    Alkyl-.omega.-fluoroformyl ester and process 失效
    烷基ω-氟甲酰酯和方法

    公开(公告)号:US4390720A

    公开(公告)日:1983-06-28

    申请号:US311312

    申请日:1981-10-14

    申请人: Paul R. Resnick

    发明人: Paul R. Resnick

    CPC分类号: C07C69/708

    摘要: Process for making alkyl-.omega.-fluoroformyl esters of the formula ##STR1## wherein R is CH.sub.3 or C.sub.2 H.sub.5 and n is 0 or an integer from 1 to 3, by reacting the methyl or ethyl ester of trifluoropyruvic acid with hexafluoropropene oxide in the presence of fluoride ion catalyst, in an aprotic liquid medium; and the ester wherein n=0.

    摘要翻译: 制备式“IMAGE”的烷基ω-氟代甲酯的方法,其中R为CH 3或C 2 H 5,n为0或1至3的整数,通过使三氟丙酮酸的甲酯或乙酯与六氟环氧丙烷在 氟离子催化剂,在非质子液体介质中; 和其中n = 0的酯。

    Ion-exchange structures of copolymer blends
    7.
    发明授权
    Ion-exchange structures of copolymer blends 失效
    共聚物共混物的离子交换结构

    公开(公告)号:US4255240A

    公开(公告)日:1981-03-10

    申请号:US45413

    申请日:1979-06-04

    IPC分类号: C08J5/22 C25B1/46

    摘要: Ion-exchange films, membranes and laminar structures incorporating a layer of a blend of a first fluorinated polymer which contains sulfonyl groups in ionizable form and a second fluorinated polymer which contains carboxylic acid functional groups, when used to separate the anode and cathode compartments of an electrolysis cell, permit operation at high current efficiency and low power consumption. They can be made by synthesis of precursor polymers in melt-fabricable form, blending, fabrication of the film, membrane or laminar structure, and hydrolysis of the functional groups to ionizable form, such as the free acid form or alkali metal salt thereof.

    摘要翻译: 离子交换膜,膜和层状结构,其包含含有可离子化形式的含有磺酰基的第一氟化聚合物的混合物层和含有羧酸官能团的第二含氟聚合物,当用于将阳极和阴极隔室 电解槽,电流效率高,功耗低。 它们可以通过以可熔融制造的形式合成前体聚合物,共混,膜的制造,膜或层状结构,以及将官能团水解成电离形式,例如游离酸形式或其碱金属盐来制备。

    Ion-exchange structures of copolymer blends useful in electrolytic cells
    8.
    发明授权
    Ion-exchange structures of copolymer blends useful in electrolytic cells 失效
    用于电解池的共聚物共混物的离子交换结构

    公开(公告)号:US4176215A

    公开(公告)日:1979-11-27

    申请号:US886338

    申请日:1978-03-13

    摘要: Ion-exchange films, membranes and laminar structures incorporating a layer of a blend of a first fluorinated polymer which contains sulfonyl groups in ionizable form and a second fluorinated polymer which contains carboxylic acid functional groups, when used to separate the anode and cathode compartments of an electrolysis cell, permit operation at high current efficiency and low power consumption. They can be made by synthesis of precursor polymers in melt-fabricable form, blending, fabrication of the film, membrane or laminar structure, and hydrolysis of the functional groups to ionizable form, such as the free acid form or alkali metal salt thereof.

    摘要翻译: 离子交换膜,膜和层状结构,其包含含有可离子化形式的含有磺酰基的第一氟化聚合物的混合物层和含有羧酸官能团的第二含氟聚合物,当用于将阳极和阴极隔室 电解槽,电流效率高,功耗低。 它们可以通过以可熔融制造的形式合成前体聚合物,共混,膜的制造,膜或层状结构,以及将官能团水解成电离形式,例如游离酸形式或其碱金属盐来制备。

    Producing CF.sub.3 CH.sub.2 CF.sub.3 and/or CF.sub.3 CH=CF.sub.2 by the
conversion of fluorinated ethers
    10.
    发明授权
    Producing CF.sub.3 CH.sub.2 CF.sub.3 and/or CF.sub.3 CH=CF.sub.2 by the conversion of fluorinated ethers 失效
    通过氟化醚的转化生成CF 3 CH 2 CF 3和/或CF 3 CH = CF 2

    公开(公告)号:US5516946A

    公开(公告)日:1996-05-14

    申请号:US392426

    申请日:1995-02-22

    摘要: A process is disclosed for producing CF.sub.3 CH.sub.2 CF.sub.3 and/or CF.sub.3 CH.dbd.CF.sub.2 from at least one ether compound selected from the group consisting of compounds having the formula (CF.sub.3).sub.2 CHCF.sub.2 OR and compounds having the formula (CF.sub.3).sub.2 C.dbd.CFOR (wherein R is an alkyl group of the formula C.sub.n H.sub.2n+1 and n is an integer from 1 to 6) by contacting the ether compound(s) with water at an elevated temperature of at least about 75.degree. C. The reaction of ether compound(s) with water may be employed in connection with a process for producing tetrafluoroethylene and/or hexafluoropropylene by pyrolysis, where by-product perfluoroisobutylene is reacted with an alkanol to produce the ether compound(s).

    摘要翻译: 公开了从至少一种选自具有式(CF 3)2 CHCF 2 OR的化合物和具有式(CF 3)2 C = CFOR的化合物)的醚化合物制备CF 3 CH 2 CF 3和/或CF 3 CH = CF 2的方法,其中R是烷基 通式C n H 2n + 1的基团,n是1至6的整数),其中醚化合物与水在至少约75℃的升高的温度下接触。醚化合物与水的反应可以 与通过热解生产四氟乙烯和/或六氟丙烯的方法有关,其中副产物全氟异丁烯与烷醇反应以产生醚化合物。