ZA822582B - Chemical process - Google Patents

Chemical process

Info

Publication number
ZA822582B
ZA822582B ZA822582A ZA822582A ZA822582B ZA 822582 B ZA822582 B ZA 822582B ZA 822582 A ZA822582 A ZA 822582A ZA 822582 A ZA822582 A ZA 822582A ZA 822582 B ZA822582 B ZA 822582B
Authority
ZA
South Africa
Prior art keywords
fluoromethylpyridines
fnh3
ortho
para
formula
Prior art date
Application number
ZA822582A
Other languages
English (en)
Inventor
Michael Scott Howarth
Edward George Scovell
David John Watson
Original Assignee
Ici Plc
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 Ici Plc filed Critical Ici Plc
Publication of ZA822582B publication Critical patent/ZA822582B/xx

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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
ZA822582A 1981-04-27 1982-04-15 Chemical process ZA822582B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8112932 1981-04-27

Publications (1)

Publication Number Publication Date
ZA822582B true ZA822582B (en) 1983-11-30

Family

ID=10521390

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA822582A ZA822582B (en) 1981-04-27 1982-04-15 Chemical process

Country Status (11)

Country Link
US (1) US4745193A (de)
EP (1) EP0063872B1 (de)
JP (1) JPS57181056A (de)
AT (1) ATE14307T1 (de)
AU (1) AU552865B2 (de)
CA (1) CA1183854A (de)
DE (1) DE3264741D1 (de)
DK (1) DK187382A (de)
ES (1) ES8303340A1 (de)
IE (1) IE52744B1 (de)
ZA (1) ZA822582B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4650875A (en) * 1983-05-09 1987-03-17 The Dow Chemical Company Preparation of (trifluoromethyl)pyridines
IL70307A (en) * 1982-11-26 1987-02-27 Dow Chemical Co Preparation of(trifluoromethyl)pyridines
US4590279A (en) * 1982-11-26 1986-05-20 The Dow Chemical Company Preparation of (trifluoromethyl)pyridines under liquid phase conditions
GB8308822D0 (en) * 1983-03-30 1983-05-11 Ici Plc Chemical process
US5073637A (en) * 1983-12-23 1991-12-17 The Dow Chemical Preparation of 2,3-difluoro-5-(trifluoromethyl)pyridine
CA1292746C (en) * 1983-12-23 1991-12-03 Charles A. Wilson Preparation of difluoropyridine compounds
US4973698A (en) * 1983-12-23 1990-11-27 The Dow Chemical Company Preparation of 2,3-difluoro-5-(trifluoromethyl)pyridine
US4563530A (en) * 1984-10-29 1986-01-07 The Dow Chemical Company Preparation of fluoropyridines
GB8504268D0 (en) * 1985-02-19 1985-03-20 Shell Int Research Preparation of fluorinated pyridines
US5436344A (en) * 1990-11-29 1995-07-25 Pfizer Inc. 3-bromo-5-chloro-pyridines used as intermediates in the synthesis of azatetralones
JP3144823B2 (ja) * 1991-04-26 2001-03-12 旭硝子株式会社 無アルカリガラス
EP0512436A1 (de) * 1991-05-02 1992-11-11 Ishihara Sangyo Kaisha, Ltd. Verfahren zur Herstellung von substituierten Pyridinderivaten
CN102924370A (zh) * 2012-03-30 2013-02-13 石家庄学院 一种2-氨基-5-甲基吡啶的制备方法
EP4105202B1 (de) 2018-01-05 2024-05-01 Zhejiang Lantian Environmental Protection Hi-Tech Co., Ltd. Verfahren zur herstellung von 2-chlor-5-trifluormethylpyridin
CN111732536B (zh) * 2020-08-26 2021-05-04 凯莱英医药集团（天津）股份有限公司 氨基吡啶类化合物的合成方法
CN113979985A (zh) * 2021-11-17 2022-01-28 山东海科新源材料科技股份有限公司 一种提升氟代碳酸乙烯酯收率稳定性的方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1004375A (en) * 1963-10-03 1965-09-15 Ici Ltd Process for making fluorochlorobenzenes and hexafluorobenzene
GB1039987A (en) * 1964-03-17 1966-08-24 Pennwalt Corp Fluoropyridines
US3574775A (en) * 1968-04-22 1971-04-13 Imp Smelting Corp Ltd Fluorination of perhalo compounds
GB1256082A (en) * 1968-09-30 1971-12-08 Ici Ltd Manufacture of chlorofluoropyridines
US3609158A (en) * 1969-03-17 1971-09-28 Dow Chemical Co Certain substituted (pyridyl)-oxy acetic acid derivatives
US4071521A (en) * 1976-08-23 1978-01-31 The Dow Chemical Company Process for making 2,6-difluoro pyridine
US4031100A (en) * 1976-08-23 1977-06-21 The Dow Chemical Company Process for making 2,6-difluoropyridine
GB2002368A (en) * 1977-08-12 1979-02-21 Ici Ltd Herbicidal 2-(4-Alkoxyphenyloxy) pyridine compounds
JPS5461182A (en) * 1977-10-20 1979-05-17 Ishihara Sangyo Kaisha Ltd 2-phenoxy-5-trifluoromethylpyridine compounds
JPS5461183A (en) * 1977-10-21 1979-05-17 Ishihara Sangyo Kaisha Ltd 2-substituted-5-trifluoromethyl pyridine compounds
US4190662A (en) * 1978-03-23 1980-02-26 The Dow Chemical Company Halomethyl substituted dialkoxypyridines
FR2471974A1 (fr) * 1979-12-20 1981-06-26 Rhone Poulenc Ind Procede de preparation de fluorures de fluorobenzene sulfonyle
US4328441A (en) * 1980-01-31 1982-05-04 Minnesota Mining And Manufacturing Company Output circuit for piezoelectric polymer pressure sensor
DE3071898D1 (en) * 1980-07-28 1987-03-05 Dow Chemical Co Process for preparing fluoropyridine compounds
US4542221A (en) * 1981-05-18 1985-09-17 The Dow Chemical Company Exchanging fluorine for chlorine in a chlorinated pyridine with an alkali metal fluoride
US4567273A (en) * 1982-04-16 1986-01-28 The Dow Chemical Company Liquid phase halogen exchange of (trichloromethyl) pyridines to (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

Also Published As

Publication number Publication date
JPS57181056A (en) 1982-11-08
JPH039109B2 (de) 1991-02-07
ATE14307T1 (de) 1985-08-15
DK187382A (da) 1982-10-28
IE820831L (en) 1982-10-27
IE52744B1 (en) 1988-02-03
AU552865B2 (en) 1986-06-26
US4745193A (en) 1988-05-17
ES511705A0 (es) 1983-02-01
CA1183854A (en) 1985-03-12
AU8237782A (en) 1982-11-04
EP0063872A1 (de) 1982-11-03
EP0063872B1 (de) 1985-07-17
DE3264741D1 (en) 1985-08-22
ES8303340A1 (es) 1983-02-01

Similar Documents

Publication Publication Date Title
ZA822582B (en) Chemical process
JPS55120549A (en) Preparation of 2-chloro-6-nitrobenzonitrile
DK160309C (da) Analogifremgangsmaade til fremstilling af 8-substituerede pyrrolizidinderivater
JPS57165387A (en) Prparation of fluoran derivative
GB1530767A (en) Process for the preparation of alkylthiomethylphenols
ES8407001A1 (es) Procedimiento para la obtencion de 2-(4-hidroxifenoxi)-propionatos.
ZA832735B (en) Substituted phenoxypropionates,intermediates for production thereof,process for production of said esters and intermediates,and herbicide
KR830006180A (ko) 뱃트물감제조용 신규중간물 α-벤즈아미도-5'(또는 8')-할로게노-1, 1'-디안트 리미드류 등의 α-벤즈아미도 -α'-할로게노-1, 1'-디안트리미드류의 제조방법
KR830008484A (ko) 제초 조성물
YU42307B (en) Process for preparing imidazo (1,2-a)imidazoles
JPS5677255A (en) Preparation of naphthalenesulfonylchlorides
JPS5780366A (en) Bromodifluoromethyl sulfide and its preparation
IE790814L (en) Process for the preparation of sulphur-containing n-benzyl¹amino acids
JPS56151751A (en) Stabilizing method of polyurethane
GB1122043A (en) Anilinoalkylcarboxamides and herbicidal compositions containing them
JPS5622765A (en) Novel method of preparing pindolol
ES8206522A1 (es) Un procedimiento para la preparacion de esteres del acido apovincaminico racemico u opticamente activos
JPS5629526A (en) Preparation of acylcyanide
JPS5639087A (en) Uracil derivative and its preparation
JPS5764679A (en) Preparation of 5-(alkoxycarbonyl)methylenehydantion
JPS55167203A (en) Herbicide
JPS57139051A (en) Preparation of phenylacetamide derivative
JPS57139052A (en) Preparation of phenylacetamide derivative
JPS55111430A (en) Preparation of phenoxyalkene derivative
JPS5686152A (en) Preparation of n-mercaptoacylamino acid