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公开(公告)号：US20230069592A1
公开(公告)日：2023-03-02
申请号：US17953545
申请日：2022-09-27
IPC分类号： C07C67/347 , B01J31/18 , C07C37/62 , C07C67/343
摘要： An object of the present invention is to provide a novel method for producing a fluorine-containing methylene compound.
The above object can be achieved by a method for producing a compound represented by formula (1): wherein R1 represents an organic group, RA represents hydrogen or fluorine, R4a represents hydrogen or an organic group, R4b represents hydrogen or an organic group, R5a represents hydrogen or an organic group, R5b represents hydrogen or an organic group, and R2 represents hydrogen or an organic group; R2 is optionally connected to R4a to form a ring; the method comprising step A of reacting a compound represented by formula (2): wherein X1 represents a leaving group, and other symbols are as defined above, with a compound represented by formula (3): wherein X2 represents a leaving group, and other symbols are as defined above, in the presence of a reducing agent as desired, under light irradiation.-
公开(公告)号：US20210221766A1
公开(公告)日：2021-07-22
申请号：US17254437
申请日：2019-06-20
IPC分类号： C07C67/347 , C07C67/343 , C07C37/62 , B01J31/18
摘要： An object of the present invention is to provide a novel method for producing a fluorine-containing methylene compound. The above object can be achieved by a method for producing a compound represented by formula (1): wherein R1 represents an organic group, RA represents hydrogen or fluorine, R4a represents hydrogen or an organic group, R4b represents hydrogen or an organic group, R5a represents hydrogen or an organic group, R5b represents hydrogen or an organic group, and R2 represents hydrogen or an organic group; R2 is optionally connected to R4a to form a ring; the method comprising step A of reacting a compound represented by formula (2): wherein X1 represents a leaving group, and other symbols are as defined above, with a compound represented by formula (3): wherein X2 represents a leaving group, and other symbols are as defined above, in the presence of a reducing agent as desired, under light irradiation.
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公开(公告)号：US20240018081A1
公开(公告)日：2024-01-18
申请号：US18372344
申请日：2023-09-25
发明人： Atsushi SHIRAI , Yoshichika KUROKI , Yuusuke ETOU , Masayuki KISHIMOTO , Takashi NAMIKAWA , Sumi ISHIHARA , Makoto SUYAMA , Kenji ADACHI , Yosuke KISHIKAWA
IPC分类号： C07C41/22 , C07C231/12 , C07C17/087
CPC分类号： C07C41/22 , C07C231/12 , C07C17/087
摘要： An object of the present disclosure is to provide a method for producing a fluorinated organic compound, the method being capable of removing a sulfur-containing substance to a high degree, or provide a composition containing a fluorinated organic compound with a low content of a sulfur-containing substance. The present disclosure relates to a method for producing a fluorinated organic compound (pf), the method comprising:
[A] reaction step A of fluorinating an organic sulfur compound (ss) with a fluorinating agent to obtain a composition (α) containing a fluorinated organic compound (pf); and
[B] post-treatment step B of reacting the composition (α) with a nucleophile at a temperature of 40° C. or higher.-
4.发明公开公开(公告)号：US20230257333A1
公开(公告)日：2023-08-17
申请号：US18135938
申请日：2023-04-18
发明人： Daisuke KARUBE , Kenta NISHIMURA , Yuuki SUZUKI , Tsubasa NAKAUE , Yoshichika KUROKI , Michiaki OKADA
摘要： The present disclosure provides a method for producing a composition comprising a purified fluorine-containing ether compound represented by formula (1): CHX1X2CF2OX3, wherein X1 and X2 are the same or different and each represents a hydrogen atom, a fluorine atom, or a trifluoromethyl group, and X3 represents a C1-6 alkyl group, provided that not both X1 and X2 are trifluoromethyl groups.
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公开(公告)号：US20240109826A1
公开(公告)日：2024-04-04
申请号：US18505611
申请日：2023-11-09
发明人： Yuuki SUZUKI , Akitoshi OGATA , Asako YOSHIYAMA , Makoto MATSUURA , Yoshichika KUROKI , Yosuke KISHIKAWA
IPC分类号： C07C29/10
CPC分类号： C07C29/10
摘要： A composition containing: a compound (2); a metal compound; and at least one selected from a compound (3) and a compound (4), the compound (3) being contained in an amount of 10000 ppm or less relative to the compound (2), the compound (4) being contained in an amount of 10000 ppm or less relative to the compound (2), the compound (2) being represented by the following formula (2):
the compound (3) being represented by the following formula (3):
and the compound (4) being represented by the following formula (4):
wherein the various substituents of compounds (2), (3) and (4) are as defined herein.-
公开(公告)号：US20210371391A1
公开(公告)日：2021-12-02
申请号：US17396088
申请日：2021-08-06
发明人： Atsushi SHIRAI , Yoshichika KUROKI , Nobuyuki MASE
IPC分类号： C07D317/16 , C07D307/10 , C07C31/38 , C08L27/12 , C08J3/09
摘要： An object of the present disclosure is to provide a method for producing an organic compound, and a composition. The object is achieved by a method for producing a compound represented by formula (1): wherein X represents —O—, an optionally substituted imino group, or —S—, R1 represents a hydrogen atom or a hydrocarbyl group optionally having at least one substituent, and R2 represents a hydrogen atom or a monovalent organic group, or R1 and R2, together with X and one carbon atom respectively adjacent to R1 and R2, may form a heterocyclic ring optionally having at least one substituent, R3 represents a hydrogen atom or a monovalent organic group, and R4 represents —CF2CH3 or —CH2CHF2; the method including step A of reacting a compound represented by formula (2): wherein the alphabetical symbols are as defined above, with vinylidene fluoride under light irradiation.
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公开(公告)号：US20220127144A1
公开(公告)日：2022-04-28
申请号：US17570069
申请日：2022-01-06
IPC分类号： C01B17/45
摘要： An object of this invention is to provide a simple method for producing sulfur tetrafluoride. The object is achieved by a method for producing sulfur tetrafluoride, comprising step A of reacting a fluorinated halogen compound with sulfur chloride, the fluorinated halogen compound being represented by formula: XFn, wherein X is chlorine, bromine, or iodine; and n is a natural number of 1 to 5.
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公开(公告)号：US20200157028A1
公开(公告)日：2020-05-21
申请号：US16626642
申请日：2018-07-03
IPC分类号： C07C19/14 , C07C17/395 , C07C17/20
摘要： This invention provides a composition that contains PFOB with a PFOA content lower than that of known PFOB, and that is less likely to have an adverse effect on the environment; and provides a method for producing PFOB. The composition contains C8F17Brand further contains C7F15COOH, wherein C7F15COOH is present in a concentration of 25 ppb or less based on the total weight of C8F17Br. The method for producing C8F17Br comprises reacting C8F17I and a brominating agent to obtain C8F17Br, and alkali-washing the obtained C8F17Br to reduce the C7F15COOH content to 25 ppb or less based on the total weight of C8F17Br.
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公开(公告)号：US20200087230A1
公开(公告)日：2020-03-19
申请号：US16471975
申请日：2017-12-22
IPC分类号： C07C17/18 , C07C67/307
摘要： The problem to be solved by the present invention is to provide a novel method for producing a difluoromethylene compound. This problem is solved by a method for producing a difluoromethylene compound containing a —CF2— moiety, the method comprising step A of mixing: a) a carbonyl compound containing a —C(O)— moiety; b) optionally an amine; c) a fluoride represented by the formula: MF, wherein M represents a Group 1 element of the periodic table; d) a halogenated fluorine compound represented by the formula: XFn, wherein X represents chlorine, bromine, or iodine, and n is a natural number of 1 to 5; and e) sulfur chloride.
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公开(公告)号：US20160297740A1
公开(公告)日：2016-10-13
申请号：US15183163
申请日：2016-06-15
发明人： Tatsuya OHTSUKA , Akihiro GOTOU , Sumi ISHIHARA , Yoshihiro YAMAMOTO , Akinori YAMAMOTO , Yoshichika KUROKI , Yuzo KOMATSU , Yousuke KISHIKAWA
CPC分类号： C07C67/36 , B01J23/44 , B01J27/13 , B01J31/0237 , B01J31/24 , B01J31/2404 , B01J31/2409 , B01J2231/321 , B01J2231/49 , B01J2531/824 , C07C69/653
摘要： The object of the present invention is to provide a process for producing α-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).
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