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GB1036870A - Preparation of fluorinated perhaloaldehydes - Google Patents

Preparation of fluorinated perhaloaldehydes

Info

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
Application number
GB2866965A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1036870A publication Critical patent/GB1036870A/en
Expired legal-status Critical Current

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.
GB2866965A 1964-07-08 1965-07-06 Preparation of fluorinated perhaloaldehydes Expired GB1036870A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
NL298218A (en) * 1962-09-26

Cited By (9)

* Cited by examiner, † Cited by third party
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-tetrafluoroethyldifluoromethyl 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.
US12351685B2 (en) 2019-02-06 2025-07-08 Central Glass Company, Limited Polyamide acid, polyimide, optical film, display device and production methods thereof
US12435185B2 (en) 2019-02-06 2025-10-07 Central Glass Company, Limited 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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