IL95496A - Process for the preparation of fluoropyridines - Google Patents

Process for the preparation of fluoropyridines

Info

Publication number
IL95496A
IL95496A IL9549690A IL9549690A IL95496A IL 95496 A IL95496 A IL 95496A IL 9549690 A IL9549690 A IL 9549690A IL 9549690 A IL9549690 A IL 9549690A IL 95496 A IL95496 A IL 95496A
Authority
IL
Israel
Prior art keywords
process according
compound
fluoropyridine
dichloro
chloropyridine
Prior art date
Application number
IL9549690A
Other languages
English (en)
Hebrew (he)
Other versions
IL95496A0 (en
Inventor
D Friese David
M Elledge Jerry
Original Assignee
Dowelanco
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 Dowelanco filed Critical Dowelanco
Publication of IL95496A0 publication Critical patent/IL95496A0/xx
Publication of IL95496A publication Critical patent/IL95496A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/61—Halogen atoms or nitro radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)
IL9549690A 1989-08-28 1990-08-27 Process for the preparation of fluoropyridines IL95496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/399,748 US4999432A (en) 1989-08-28 1989-08-28 Fluorination with hydrogen fluoride

Publications (2)

Publication Number Publication Date
IL95496A0 IL95496A0 (en) 1991-06-30
IL95496A true IL95496A (en) 1994-04-12

Family

ID=23580800

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9549690A IL95496A (en) 1989-08-28 1990-08-27 Process for the preparation of fluoropyridines

Country Status (8)

Country Link
US (1) US4999432A (ja)
EP (1) EP0415498A3 (ja)
JP (1) JPH03163062A (ja)
AU (1) AU6138090A (ja)
CA (1) CA2024032A1 (ja)
HU (1) HUT54985A (ja)
IL (1) IL95496A (ja)
RU (1) RU1838300C (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5315043A (en) * 1992-02-05 1994-05-24 E. I. Du Pont De Nemours And Company Aromatic nucleophilic fluorination
CN101980600A (zh) * 2008-02-05 2011-02-23 北美爱利思达生命科学有限责任公司 低熔点活性化合物的固体制剂
TWI520943B (zh) 2011-01-25 2016-02-11 陶氏農業科學公司 用於製備４－胺基－３－氯－５－氟－６－（經取代的）吡啶甲酸酯的方法（二）
CN108017574B (zh) * 2017-12-20 2019-03-08 江苏中旗科技股份有限公司 一种氟草烟中间体3,5-二氯-2,4,6-三氟吡啶连续化生产的方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1234543A (ja) * 1969-02-25 1971-06-03
GB1272475A (en) * 1969-05-30 1972-04-26 Ici Ltd Manufacture of fluoropyridines
US4480102A (en) * 1982-07-23 1984-10-30 The Dow Chemical Company 2,3-Difluoro-5-(trifluoromethyl)pyridine and methods of making and using the same
US4650875A (en) * 1983-05-09 1987-03-17 The Dow Chemical Company Preparation of (trifluoromethyl)pyridines
US4590279A (en) * 1982-11-26 1986-05-20 The Dow Chemical Company Preparation of (trifluoromethyl)pyridines under liquid phase conditions
US4547577A (en) * 1984-06-08 1985-10-15 The Dow Chemical Company Preparation of (trifluoromethyl)pyridines
EP0178260B1 (de) * 1984-10-10 1990-05-16 Ciba-Geigy Ag Verfahren zur Herstellung von fluorierten Pyridin-Derivaten
GB8504268D0 (en) * 1985-02-19 1985-03-20 Shell Int Research Preparation of fluorinated pyridines
US4680406A (en) * 1985-10-15 1987-07-14 The Dow Chemical Company Process for fluorinating halogenated organo-compounds
US4746744A (en) * 1986-10-22 1988-05-24 The Dow Chemical Company Method of preparation of 3,5-dichloro-2,4,6-trifluoropyridine
US4782161A (en) * 1987-10-21 1988-11-01 The Dow Chemical Company Preparation of fluoropyridines

Also Published As

Publication number Publication date
AU6138090A (en) 1991-02-28
US4999432A (en) 1991-03-12
EP0415498A2 (en) 1991-03-06
HU905329D0 (en) 1991-02-28
RU1838300C (ru) 1993-08-30
HUT54985A (en) 1991-04-29
CA2024032A1 (en) 1991-03-01
EP0415498A3 (en) 1991-08-07
IL95496A0 (en) 1991-06-30
JPH03163062A (ja) 1991-07-15

Similar Documents

Publication Publication Date Title
US3538100A (en) Process for preparing highly chlorinated pyridines
CA1208223A (en) Production of 3-trichloromethyl- and 3- trifluoromethyl-pyridines
US4490534A (en) Process for producing 3-chloro-5-trifluoromethylpyridines
GB2045761A (en) Process for producing chloro-trifluoromethylpyridines
GB1599783A (en) Partial chlorination of 3-methyl pyridine
EP0146924B1 (en) Preparation of difluorpyridine compounds
US5146018A (en) Hydrogenolysis/dehydrohalogenation process
US4999432A (en) Fluorination with hydrogen fluoride
US4563529A (en) Process for producing trifluoromethylpyridines
US4542221A (en) Exchanging fluorine for chlorine in a chlorinated pyridine with an alkali metal fluoride
EP0110690B1 (en) Preparation of (trifluoromethyl)pyridines
US4420618A (en) Process for producing 5-chloro-β-trifluoromethylpyridines
US4448967A (en) Process for preparing chloro-trifluoromethyl pyridines
US5319088A (en) Selective gas phase chlorination of polychlorinated β-picolines to produce 2,3,5,6-tetrachloropyridine and its precursors
US5247093A (en) Chlorination process
JPH069559A (ja) 置換された２，３−ジフルオロピリジンの製造方法
US4701532A (en) Method of selectively chlorinating 2-chloro-5-(trichloromethyl) pyridine in the 3-position
US4567274A (en) Chlorine exchange for fluorine in 2-fluoropyridine compounds
CA1208225A (en) Preparation of fluoropyridines
US4493932A (en) Chlorine exchange for fluorine in 2-fluoro-pyridine compounds
US4705859A (en) Polychloropyridine production from polychloro-2,3-lutidines
US4891108A (en) Process for preparing tetrahalopyridines
JPH04164068A (ja) フッ素化ピリジン類の製造方法
CA1202975A (en) Preparation of (trifluoromethyl)pyridines
EP0044890A1 (en) Process for preparing fluoropyridine compounds

Legal Events

Date Code Title Description
RH Patent void