FI895662A0 - Menetelmä 3,4-difluorisubstituoidun benseenin valmistamiseksi - Google Patents
Menetelmä 3,4-difluorisubstituoidun benseenin valmistamiseksiInfo
- Publication number
- FI895662A0 FI895662A0 FI895662A FI895662A FI895662A0 FI 895662 A0 FI895662 A0 FI 895662A0 FI 895662 A FI895662 A FI 895662A FI 895662 A FI895662 A FI 895662A FI 895662 A0 FI895662 A0 FI 895662A0
- Authority
- FI
- Finland
- Prior art keywords
- difluoro
- preparation
- substituted benzene
- benzene
- substituted
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C255/50—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
- C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
- C07C17/208—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being MX
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27671288A | 1988-11-28 | 1988-11-28 | |
US27671188 | 1988-11-28 | ||
US27671288 | 1988-11-28 | ||
US07/276,711 US4937396A (en) | 1988-11-28 | 1988-11-28 | Preparation of 3,4-difluorobenzotrifluoride |
Publications (3)
Publication Number | Publication Date |
---|---|
FI895662A0 true FI895662A0 (fi) | 1989-11-27 |
FI92387B FI92387B (fi) | 1994-07-29 |
FI92387C FI92387C (fi) | 1994-11-10 |
Family
ID=26958095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI895662A FI92387C (fi) | 1988-11-28 | 1989-11-27 | Menetelmä 3,4-difluorisubstituoidun benseenin valmistamiseksi |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0372621B1 (fi) |
JP (1) | JP2667720B2 (fi) |
AU (1) | AU616326B2 (fi) |
BR (1) | BR8906227A (fi) |
CA (1) | CA2003919C (fi) |
DE (1) | DE68917567T2 (fi) |
FI (1) | FI92387C (fi) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113527020A (zh) * | 2021-07-06 | 2021-10-22 | 浙江大学 | 以氟盐为氟源的管道化连续氟化的方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4937397A (en) * | 1988-11-28 | 1990-06-26 | The Dow Chemical Company | Preparation of halofluorobenzenes |
EP0497239A1 (de) * | 1991-01-30 | 1992-08-05 | Hoechst Aktiengesellschaft | 2-Chlor-4,5-difluorbenzonitril und Verfahren zu seiner Herstellung |
GB9110181D0 (fi) * | 1991-05-10 | 1991-07-03 | Ici Plc | |
EP0944564B9 (en) | 1996-11-22 | 2005-01-19 | Albemarle Corporation | Halogen exchange reactions and uses thereof |
GB0407952D0 (en) * | 2004-04-08 | 2004-05-12 | Amersham Plc | Fluoridation method |
CN101321720B (zh) * | 2005-12-08 | 2012-12-26 | 住友化学株式会社 | 制备四氟对苯二甲酸二氟化物的方法 |
JP4973143B2 (ja) * | 2005-12-08 | 2012-07-11 | 住友化学株式会社 | テトラフルオロテレフタル酸ジフルオライドの製造法 |
JP6385845B2 (ja) * | 2014-03-27 | 2018-09-05 | 大阪ガスケミカル株式会社 | 新規フルオレン化合物及びその製造方法 |
CN104387264B (zh) * | 2014-11-11 | 2016-07-06 | 常州大学 | 一种合成2-氟-5-溴对苯二甲酸的方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4229365A (en) * | 1977-05-28 | 1980-10-21 | Basf Aktiengesellschaft | Manufacture of substituted fluorobenzenes |
US4937397A (en) * | 1988-11-28 | 1990-06-26 | The Dow Chemical Company | Preparation of halofluorobenzenes |
-
1989
- 1989-11-27 CA CA 2003919 patent/CA2003919C/en not_active Expired - Lifetime
- 1989-11-27 AU AU45572/89A patent/AU616326B2/en not_active Expired
- 1989-11-27 EP EP19890203010 patent/EP0372621B1/en not_active Expired - Lifetime
- 1989-11-27 DE DE1989617567 patent/DE68917567T2/de not_active Expired - Lifetime
- 1989-11-27 JP JP1304934A patent/JP2667720B2/ja not_active Expired - Lifetime
- 1989-11-27 FI FI895662A patent/FI92387C/fi not_active IP Right Cessation
- 1989-11-28 BR BR8906227A patent/BR8906227A/pt not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113527020A (zh) * | 2021-07-06 | 2021-10-22 | 浙江大学 | 以氟盐为氟源的管道化连续氟化的方法 |
CN113527020B (zh) * | 2021-07-06 | 2022-04-08 | 浙江大学 | 以氟盐为氟源的管道化连续氟化的方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0372621B1 (en) | 1994-08-17 |
DE68917567T2 (de) | 1994-12-22 |
EP0372621A1 (en) | 1990-06-13 |
AU616326B2 (en) | 1991-10-24 |
BR8906227A (pt) | 1990-06-26 |
JPH02218629A (ja) | 1990-08-31 |
FI92387C (fi) | 1994-11-10 |
FI92387B (fi) | 1994-07-29 |
CA2003919C (en) | 2000-01-18 |
JP2667720B2 (ja) | 1997-10-27 |
DE68917567D1 (de) | 1994-09-22 |
CA2003919A1 (en) | 1990-05-28 |
AU4557289A (en) | 1990-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: THE DOW CHEMICAL COMPANY |
|
BB | Publication of examined application | ||
MM | Patent lapsed |
Owner name: THE DOW CHEMICAL COMPANY |