GB1036870A - Preparation of fluorinated perhaloaldehydes - Google Patents
Preparation of fluorinated perhaloaldehydesInfo
- Publication number
- GB1036870A GB1036870A GB2866965A GB2866965A GB1036870A GB 1036870 A GB1036870 A GB 1036870A GB 2866965 A GB2866965 A GB 2866965A GB 2866965 A GB2866965 A GB 2866965A GB 1036870 A GB1036870 A GB 1036870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen fluoride
- fluorinated
- perhaloacetaldehydes
- perhaloacetaldehyde
- perhaloaldehydes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/26—Chromium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/63—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Fluorinated perhaloacetaldehydes are made by heating, in the vapour phase at 200-500 DEG C., anhydrous hydrogen fluoride and a perhaloacetaldehyde in which the halogens are Cl or F, at least one being Cl, using at least one mole of hydrogen fluoride per mole of perhaloacetaldehyde, in the presence of an activated anhydrous chromium (III) oxide catalyst. It is usual to employ hydrogen fluoride in an excess of the stoichlometric amount required, as the degree of fluorination is primarily dependent upon the reaction temperature, catalyst and flow rate. The fluorinated perhaloacetaldehydes are obtained as complexes with hydrogen fluoride which can be decomposed by treatment with activated sodium fluoride. Examples relate to trifluoroacetaldehyde.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38124764A | 1964-07-08 | 1964-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1036870A true GB1036870A (en) | 1966-07-20 |
Family
ID=23504271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2866965A Expired GB1036870A (en) | 1964-07-08 | 1965-07-06 | Preparation of fluorinated perhaloaldehydes |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1287056B (en) |
FR (1) | FR88728E (en) |
GB (1) | GB1036870A (en) |
NL (1) | NL6508807A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108341743A (en) * | 2018-04-10 | 2018-07-31 | 湖北省宏源药业科技股份有限公司 | A kind of method that gas phase catalytic fluorination trichloroacetaldehyde prepares trifluoroacetic acid |
CN110139848A (en) * | 2016-12-29 | 2019-08-16 | 中央硝子株式会社 | The manufacturing method of tetra- fluoro ethyl difluoromethyl ether (Desflurane) of 1,2,2,2- |
WO2019216163A1 (en) * | 2018-05-09 | 2019-11-14 | セントラル硝子株式会社 | 1,2,2,2-tetrafluoroethyl methyl ether production method |
WO2020162408A1 (en) * | 2019-02-06 | 2020-08-13 | セントラル硝子株式会社 | Method for producing 1,1,1-trifluoro-2,2-bisarylethane, and 1,1,1-trifluoro-2,2-bisarylethane |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2556339B1 (en) * | 1983-12-13 | 1986-05-16 | Atochem | CATALYTIC PROCESS FOR THE PREPARATION OF TRIFLUOROACETALDEHYDE |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3017436A (en) * | 1956-11-28 | 1962-01-16 | Dow Chemical Co | Preparation of fluoral |
BE637698A (en) * | 1962-09-26 | |||
BE637697A (en) * | 1962-09-26 |
-
1965
- 1965-07-06 GB GB2866965A patent/GB1036870A/en not_active Expired
- 1965-07-07 FR FR88728D patent/FR88728E/fr not_active Expired
- 1965-07-07 DE DE1965P0037205 patent/DE1287056B/en active Pending
- 1965-07-08 NL NL6508807A patent/NL6508807A/xx unknown
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110139848A (en) * | 2016-12-29 | 2019-08-16 | 中央硝子株式会社 | The manufacturing method of tetra- fluoro ethyl difluoromethyl ether (Desflurane) of 1,2,2,2- |
CN110139848B (en) * | 2016-12-29 | 2022-04-12 | 中央硝子株式会社 | Method for producing 1,2,2, 2-tetrafluoroethyl difluoromethyl ether (desflurane) |
CN108341743A (en) * | 2018-04-10 | 2018-07-31 | 湖北省宏源药业科技股份有限公司 | A kind of method that gas phase catalytic fluorination trichloroacetaldehyde prepares trifluoroacetic acid |
WO2019216163A1 (en) * | 2018-05-09 | 2019-11-14 | セントラル硝子株式会社 | 1,2,2,2-tetrafluoroethyl methyl ether production method |
WO2020162408A1 (en) * | 2019-02-06 | 2020-08-13 | セントラル硝子株式会社 | Method for producing 1,1,1-trifluoro-2,2-bisarylethane, and 1,1,1-trifluoro-2,2-bisarylethane |
CN113396137A (en) * | 2019-02-06 | 2021-09-14 | 中央硝子株式会社 | Method for producing 1,1, 1-trifluoro-2, 2-bisarylethane, and 1,1, 1-trifluoro-2, 2-bisarylethane |
JPWO2020162408A1 (en) * | 2019-02-06 | 2021-12-09 | セントラル硝子株式会社 | A method for producing 1,1,1-trifluoro-2,2-bisarylethane, and 1,1,1-trifluoro-2,2-bisarylethane. |
Also Published As
Publication number | Publication date |
---|---|
DE1287056B (en) | 1969-01-16 |
FR88728E (en) | 1967-06-02 |
NL6508807A (en) | 1966-01-10 |
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