公开(公告)号：US20230069592A1

公开(公告)日：2023-03-02

申请号：US17953545

申请日：2022-09-27

申请人： DAIKIN INDUSTRIES, LTD. ,  UNIVERSITY PUBLIC CORPORATION OSAKA

发明人： Makoto MATSUURA ,  Yoshichika KUROKI ,  Yosuke KISHIKAWA ,  Ilhyong RYU ,  Takahide FUKUYAMA

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

申请人： DAIKIN INDUSTRIES, LTD. ,  UNIVERSITY PUBLIC CORPORATION OSAKA

发明人： Makoto MATSUURA ,  Yoshichika KUROKI ,  Yosuke KISHIKAWA ,  Ilhyong RYU ,  Takahide FUKUYAMA

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.

公开(公告)号：US20190071376A1

公开(公告)日：2019-03-07

申请号：US16082389

申请日：2017-03-08

申请人： DAIKIN INDUSTRIES, LTD. ,  Osaka Prefecture University Public Corporation

发明人： Makoto MATSUURA ,  Akinori YAMAMOTO ,  Yosuke KISHIKAWA ,  Ilhyong RYU ,  Takahide FUKUYAMA ,  Shuhei SUMINO

IPC分类号： C07C17/275 ,  C07C41/30 ,  C07C67/347

摘要： This invention solves the problem of providing an efficient, new method for producing a fluoromethylene-containing compound. The problem can be solved by a method for producing a compound represented by formula (1) or a ring-closed or ring-opened derivative of the compound, wherein R1 represents an organic group, RX represents hydrogen or fluorine, R2a, R2b, R2c, and R2d are the same or different, and each represents —Y—R21 or —N(—R22)2, or R2b and R2c may join together to form a bond, wherein Y represents a bond, oxygen, or sulfur, R21 represents hydrogen or an organic group, and R22, in each occurrence, is the same or different and represents hydrogen or an organic group; the method comprising step A of reacting a compound represented by formula (2), wherein X represents a leaving group, and other symbols are as defined above, with a compound represented by formula (3), wherein the symbols are as defined above, in the presence of a reducing agent under light irradiation.