BE864280A - Procede de preparation de m-bromo-alpha,alpha, alpha,-trifluorotoluenes - Google Patents
Procede de preparation de m-bromo-alpha,alpha, alpha,-trifluorotoluenesInfo
- Publication number
- BE864280A BE864280A BE2056704A BE2056704A BE864280A BE 864280 A BE864280 A BE 864280A BE 2056704 A BE2056704 A BE 2056704A BE 2056704 A BE2056704 A BE 2056704A BE 864280 A BE864280 A BE 864280A
- Authority
- BE
- Belgium
- Prior art keywords
- alpha
- trifluorotoluenes
- bromo
- preparing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C25/00—Compounds containing at least one halogen atom bound to a six-membered aromatic ring
- C07C25/02—Monocyclic aromatic halogenated hydrocarbons
- C07C25/13—Monocyclic aromatic halogenated hydrocarbons containing fluorine
-
- 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
- C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
- C07C17/12—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the ring of aromatic compounds
-
- 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
- C07C17/206—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 HX
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2708190A DE2708190C2 (de) | 1977-02-25 | 1977-02-25 | Verfahren zur Herstellung von m-Brom-benzotrifluoriden |
Publications (1)
Publication Number | Publication Date |
---|---|
BE864280A true BE864280A (fr) | 1978-08-24 |
Family
ID=6002158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE2056704A BE864280A (fr) | 1977-02-25 | 1978-02-24 | Procede de preparation de m-bromo-alpha,alpha, alpha,-trifluorotoluenes |
Country Status (7)
Country | Link |
---|---|
US (1) | US4155940A (xx) |
JP (1) | JPS53105435A (xx) |
BE (1) | BE864280A (xx) |
CH (1) | CH633244A5 (xx) |
DE (1) | DE2708190C2 (xx) |
FR (1) | FR2381733A1 (xx) |
GB (1) | GB1574684A (xx) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4393257A (en) * | 1976-12-27 | 1983-07-12 | Daikin Kogyo Co., Ltd. | Process for preparing benzotrifluoride and its derivatives |
DE2837499A1 (de) * | 1978-08-28 | 1980-03-20 | Bayer Ag | Verfahren zur herstellung von substituierten benzotrifluoriden und neue substituierte benzotrifluoride |
DE2928987A1 (de) * | 1979-07-18 | 1981-02-12 | Bayer Ag | 4-fluor-3-brom-benzoylfluorid und verfahren zu seiner herstellung |
DE3109966A1 (de) * | 1981-03-14 | 1982-09-23 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von trichlormethyl-substituierten aromatischen verbindungen und dabei erhaltene trichlormethyl-substituierte verbindungen |
JPS58222040A (ja) * | 1982-06-18 | 1983-12-23 | Central Glass Co Ltd | メタ−クロロベンゾトリフルオリドの製造方法 |
US4727187A (en) * | 1984-06-15 | 1988-02-23 | Ciba-Geigy Corporation | Process for the preparation of α, α-difluoroalkyl phenyl ether derivatives |
GB8523126D0 (en) * | 1985-09-19 | 1985-10-23 | Ici Plc | Aryl pyridones |
US4966988A (en) * | 1989-02-17 | 1990-10-30 | Chevron Research Company | Process for preparing acetonitrile 3-trifluoromethyl benzene |
CN108558597A (zh) * | 2018-06-07 | 2018-09-21 | 天门楚天精细化工有限公司 | 一种高效实用的间溴三氟甲苯的合成方法 |
CN111620778A (zh) * | 2020-05-28 | 2020-09-04 | 吴赣药业(苏州)有限公司 | 一种5-溴-2-氯苯甲酸的制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3258500A (en) * | 1959-08-17 | 1966-06-28 | Du Pont | Process for fluorinating halohydro-carbons |
US3859372A (en) * | 1969-12-03 | 1975-01-07 | Hooker Chemicals Plastics Corp | Process for the preparation of organic fluorine compounds |
DE1965782A1 (de) * | 1969-12-31 | 1971-07-08 | Hoechst Ag | Verbessertes Verfahren zur Herstellung von aromatischen Trifluormethylverbindungen der Benzolreihe |
CH598163A5 (xx) * | 1974-12-19 | 1978-04-28 | Lonza Ag | |
US4045502A (en) * | 1976-09-29 | 1977-08-30 | Olin Corporation | Process for producing high purity para-chlorobenzotrifluoride |
-
1977
- 1977-02-25 DE DE2708190A patent/DE2708190C2/de not_active Expired
-
1978
- 1978-02-10 US US05/876,821 patent/US4155940A/en not_active Expired - Lifetime
- 1978-02-20 GB GB6645/78A patent/GB1574684A/en not_active Expired
- 1978-02-23 CH CH198578A patent/CH633244A5/de not_active IP Right Cessation
- 1978-02-23 JP JP1914178A patent/JPS53105435A/ja active Pending
- 1978-02-24 FR FR7805430A patent/FR2381733A1/fr active Granted
- 1978-02-24 BE BE2056704A patent/BE864280A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH633244A5 (de) | 1982-11-30 |
FR2381733A1 (fr) | 1978-09-22 |
DE2708190A1 (de) | 1978-08-31 |
FR2381733B1 (xx) | 1983-12-30 |
JPS53105435A (en) | 1978-09-13 |
GB1574684A (en) | 1980-09-10 |
US4155940A (en) | 1979-05-22 |
DE2708190C2 (de) | 1984-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: BAYER A.G. Effective date: 19860228 |