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公开(公告)号：US20230202962A1
公开(公告)日：2023-06-29
申请号：US18110513
申请日：2023-02-16
发明人： Makoto MATSUURA , Seiji TAKUBO , Moe HOSOKAWA , Yosuke KISHIKAWA , Akihiro GOTOU
IPC分类号： C07C67/58
CPC分类号： C07C67/58
摘要： The present disclosure addresses the problem of providing a method for purifying a halogen-containing (meth)acrylic acid ester, the method being capable of removing an alcohol to a high degree. This problem can be solved by a method for purifying a compound represented by formula (1):
(wherein R1 and R2 are be the same or different and represent an alkyl group, a fluoroalkyl group, an aryl group optionally having one or more substituents, a halogen atom, or a hydrogen atom, R3 represents an alkyl group, a fluoroalkyl group, or an aryl group optionally having one or more substituents, and X represents a fluoroalkyl group or a halogen atom),
the method comprising step (A) of mixing a composition comprising the compound represented by formula (1) and a compound represented by formula (2):
R4—OH (2)
(wherein R4 is an alkyl group, a fluoroalkyl group, or an aryl group optionally having one or more substituents) with (i) a salt and/or (ii) a specific organic solvent to obtain a mixture; and step (B) of separating the mixture into two or more phases that are different from each other in terms of the content of the compound represented by formula (1).-
公开(公告)号：US20210380739A1
公开(公告)日：2021-12-09
申请号：US17285540
申请日：2019-10-18
发明人： Takahiro FURUTANI , Akihiro GOTOU , Masaki IRIE
IPC分类号： C08F214/22 , C08K5/00
摘要： A fluorine-containing elastomer including a vinylidene fluoride unit and an unsaturated ether unit selected from a unit based on a monomer (1) represented by the general formula (1): CH2═CFCF2—O—Rf1 and a unit based on a monomer (2) represented by the general formula (2): CH2═CF—O—Rf2, and having a glass transition temperature of 20° C. or lower, a crosslinkable composition including the fluorine-containing elastomer, and a molded article obtained from the fluorine-containing elastomer or the crosslinkable composition.
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公开(公告)号：US20210269383A1
公开(公告)日：2021-09-02
申请号：US17253856
申请日：2019-06-21
IPC分类号： C07C51/145 , C07C67/42 , B01J31/22 , B01J31/24
摘要： An object of the present invention is to provide a novel method for producing an α-fluoroacrylic acid ester compound. This problem is solved by a method for producing a compound represented by formula (1), wherein R1 and R2 are identical or different, and each represents an alkyl group or the like; and R3 is an alkyl group or the like, the method comprising step A of reacting a compound represented by formula (2) with R3—OH (3) and carbon monoxide in the presence of palladium, a double bond-containing compound (α), a diphosphine compound (β), and a base, to obtain the compound represented by formula (1) above.
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公开(公告)号：US20180099922A1
公开(公告)日：2018-04-12
申请号：US15564927
申请日：2016-04-08
发明人： Tomohito HAMADA , Makoto MATSUURA , Asako YOSHIYAMA , Akihiro GOTOU , Manaho MIYAZAKI , Yosuke KISHIKAWA
IPC分类号： C07C69/653 , C07C67/62
CPC分类号： C07C69/653 , C07C47/02 , C07C67/62
摘要： An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein Ra represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen; and X represents fluorine, alkyl, perfluoroalkyl, or hydrogen); and (B) aldehyde, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.
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公开(公告)号：US20170267626A1
公开(公告)日：2017-09-21
申请号：US15614875
申请日：2017-06-06
发明人： Akihiro GOTOU , Manaho MIYAZAKI , Sumi ISHIHARA , Takashi NAMIKAWA , Tatsuya OHTSUKA , Yosuke KISHIKAWA
IPC分类号： C07C67/36 , C07C69/65 , C07C69/653
CPC分类号： C07C67/36 , C07C69/653 , C07C69/65
摘要： An object of the present invention is to provide a process for producing α-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R2 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent,the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH (3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).
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公开(公告)号：US20230192590A1
公开(公告)日：2023-06-22
申请号：US18110060
申请日：2023-02-15
IPC分类号： C07C67/54
CPC分类号： C07C67/54
摘要： The present disclosure addresses the problem of providing a method for purifying an acrylic acid ester compound. This problem can be solved by a method for purifying a compound represented by formula (1)
(wherein R1 and R2 are the same as or different and each represent an alkyl group, a fluoroalkyl group, an aryl group optionally having one or more substituent groups, a halogen atom, or a hydrogen atom, R3 is an alkyl group, a fluoroalkyl group, or an aryl group optionally having one or more substituent groups, and X is a fluoroalkyl group or a halogen atom), the method including step A of distilling composition A containing (a) the compound represented by formula (1), (b) an alcohol, and (c) a salt so as to obtain a concentrate containing the compound represented by formula (1).-
公开(公告)号：US20220341045A1
公开(公告)日：2022-10-27
申请号：US17859462
申请日：2022-07-07
发明人： Shinsuke INAGI , Naoki SHIDA , Tomohiro ISOGAI , Akihiro GOTOU
摘要： An object of the present disclosure is to provide a novel method for producing a fluorine-containing organic compound by electrolytic fluorination, and the like. The object can be achieved by a method for producing a fluorine-containing organic compound (1), comprising step A of subjecting an organic compound (2) to electrolytic fluorination in the presence of 0.2 M or more of a metal fluoride, and a fluoroalcohol.
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公开(公告)号：US20210284593A1
公开(公告)日：2021-09-16
申请号：US17255689
申请日：2019-06-26
发明人： Naoyuki HOSHIYA , Akihiro GOTOU , Yosuke KISHIKAWA
IPC分类号： C07C43/176 , B01J31/16
摘要： An object of the present invention is to provide, for example, a novel method for synthesizing a fluorovinyl ether compound from a fluorine-containing vinyl compound. This problem is solved by a method for producing a compound represented by formula (1): wherein Ra1 is a hydrogen atom, a halogeno group, an alkyl group, a fluoroalkyl group, or an aromatic group optionally having one or more substituents, Rf is a fluoro group or a perfluoroalkyl group, Ra2 is a hydrogen atom, a halogeno group, an alkyl group, a fluoroalkyl group, or an aromatic group optionally having one or more substituents, or (i) Ra1 and Ra2, (ii) Ra1 and Rf, or (iii) Rf and Ra2 may be linked to each other, Rb1 is RS, Rb2 is a hydrogen atom or RS, Rb3 is a hydrogen atom or RS, or two or three of Rb1, Rb2, and Rb3, taken together with the adjacent carbon atom, may form a ring optionally having one or more substituents, and RS, in each occurrence, is the same or different and represents a hydrocarbon group optionally having one or more substituents, the method comprising step A of reacting a compound represented by formula (2): wherein Rx is a leaving group, and other symbols are as defined above, with a compound represented by formula (3): wherein the symbols in the formula are as defined above, in the presence of a transition metal catalyst.
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公开(公告)号：US20230144907A1
公开(公告)日：2023-05-11
申请号：US18091516
申请日：2022-12-30
发明人： Naoyuki HOSHIYA , Akihiro GOTOU , Yosuke KISHIKAWA
IPC分类号： C07C41/16
CPC分类号： C07C41/16
摘要： An object of the present invention is to provide, for example, a novel method for synthesizing a fluorovinyl ether compound from a fluorine-containing vinyl compound. This problem is solved by a method for producing a compound represented by formula (1):
wherein
Ra1 is a hydrogen atom, a halogeno group, an alkyl group, a fluoroalkyl group, or an aromatic group optionally having one or more substituents,
Rf is a fluoro group or a perfluoroalkyl group,
Ra2 is a hydrogen atom, a halogeno group, an alkyl group, a fluoroalkyl group, or an aromatic group optionally having one or more substituents, or
(i) Ra1 and Ra2, (ii) Ra1 and Rf, or (iii) Rf and Ra2 may be linked to each other,
Rb1 is Rs,
Rb2 is a hydrogen atom or Rs,
Rb3 is a hydrogen atom or Rs, or
two or three of Rb1, Rb2, and Rb3, taken together with the adjacent carbon atom, may form a ring optionally having one or more substituents, and
Rs, in each occurrence, is the same or different and represents a hydrocarbon group optionally having one or more substituents, the method comprising
step A of reacting a compound represented by formula (2):
wherein
Rx is a leaving group, and
other symbols are as defined above,
with a compound represented by formula (3):
wherein the symbols in the formula are as defined above,
in the presence of a transition metal catalyst.-
公开(公告)号：US20160318842A1
公开(公告)日：2016-11-03
申请号：US15107204
申请日：2014-12-26
发明人： Akihiro GOTOU , Manaho MIYAZAKI , Sumi ISHIHARA , Takashi NAMIKAWA , Tatsuya OHTSUKA , Yosuke KISHIKAWA
IPC分类号： C07C67/36
CPC分类号： C07C67/36 , C07C69/653 , C07C69/65
摘要： An object of the present invention is to provide a process for producing α-fluoroacrylic acid esters at a high starting material conversion and a high yield.The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R2 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH (3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).
摘要翻译： 本发明的目的是提供一种在高原料转化率和高产率下生产± - 氟代丙烯酸酯的方法。 本发明提供作为实现该目标的手段，制备由式（1）表示的化合物的方法：其中R 1和R 2相同或不同，并且各自表示烷基，氟烷基，任选被至少取代的芳基 一个取代基，卤素或氢; 并且R 3表示任选被至少一个取代基取代的烷基，氟代烷基或芳基，所述方法包括步骤A，使式（2）表示的化合物：其中符号如上定义，与一氧化碳和以 公式（3）：€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR3 -OH€ƒ€ƒ€ƒ€ƒ（3）其中符号如上所述，在存在 含有至少一个二齿膦配体和碱的过渡金属络合物催化剂，由此得到式（1）所示的化合物。
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