ES2085537T3 - Cloracion selectiva en fase gaseosa de beta-picolinas policloradas para la preparacion de 2,3,5,6-tetracloropiridina y sus precursores. - Google Patents

Cloracion selectiva en fase gaseosa de beta-picolinas policloradas para la preparacion de 2,3,5,6-tetracloropiridina y sus precursores.

Info

Publication number
ES2085537T3
ES2085537T3 ES92120117T ES92120117T ES2085537T3 ES 2085537 T3 ES2085537 T3 ES 2085537T3 ES 92120117 T ES92120117 T ES 92120117T ES 92120117 T ES92120117 T ES 92120117T ES 2085537 T3 ES2085537 T3 ES 2085537T3
Authority
ES
Spain
Prior art keywords
beta
polychlorated
picolins
tetrachloropyridine
precursors
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 - Lifetime
Application number
ES92120117T
Other languages
English (en)
Inventor
Clark P Allphin
Michael A Desjardin
Arnold D Harley
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.)
Corteva Agriscience LLC
Original Assignee
DowElanco LLC
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 LLC filed Critical DowElanco LLC
Application granted granted Critical
Publication of ES2085537T3 publication Critical patent/ES2085537T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)

Abstract

LA 2,3,5,6-TETRACLOOPIRIDINA, Y LA 2,3,6-TRICLORO-5(TRICLOROMETIL)PIRIDINA SE PREPARAN MEDIANTE LA CLORACION SELECTIVA DE BETA-PICOLINAS POLICLORADAS EN LA FASE DE VAPOR ENTRE 250 (GRADOS) C Y 450 (GRADOS) C EN LA PRESENCIA DE CATALIZADORES DE ALURO DE ACIDO "LEWIS" ESPECIFICOS SOBRE UN SOPORTE INORGANICO. LA POSICION GAMMA DEL ANILLO DE PIRIDINA NO ESTA HABITUALMENTE CLORADA EN EL MATERIAL DE INICIO O EN LOS PRODUCTOS DE REACCION. ESTOS COMPUESTOS SON UTILES COMO PRODUCTOS INTERMEDIOS PARA PRODUCIR INSECTICIDAS Y HERBICIDAS.
ES92120117T 1991-11-26 1992-11-25 Cloracion selectiva en fase gaseosa de beta-picolinas policloradas para la preparacion de 2,3,5,6-tetracloropiridina y sus precursores. Expired - Lifetime ES2085537T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/798,683 US5319088A (en) 1991-11-26 1991-11-26 Selective gas phase chlorination of polychlorinated β-picolines to produce 2,3,5,6-tetrachloropyridine and its precursors

Publications (1)

Publication Number Publication Date
ES2085537T3 true ES2085537T3 (es) 1996-06-01

Family

ID=25174021

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92120117T Expired - Lifetime ES2085537T3 (es) 1991-11-26 1992-11-25 Cloracion selectiva en fase gaseosa de beta-picolinas policloradas para la preparacion de 2,3,5,6-tetracloropiridina y sus precursores.

Country Status (6)

Country Link
US (1) US5319088A (es)
EP (1) EP0544267B1 (es)
JP (1) JPH0656782A (es)
DE (1) DE69209621T2 (es)
ES (1) ES2085537T3 (es)
IL (1) IL103877A (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996026188A1 (en) * 1995-02-22 1996-08-29 Sagami Chemical Research Center 2-chloropyridines and method of the production of starting materials therefor
KR101086913B1 (ko) * 2003-03-04 2011-11-29 다우 아그로사이언시즈 엘엘씨 6-클로로-2-트리클로로메틸피리딘의 기상 염소화에 의한3,6-디클로로-2-트리클로로메틸피리딘 제조
CN102127011B (zh) * 2011-01-11 2012-10-03 湘潭大学 一种活性炭催化氯化合成多氯吡啶及其衍生物的方法及设备
CN109734657B (zh) * 2018-12-05 2021-10-01 重庆中邦科技有限公司 一种2,3,6-三氯吡啶的制备方法
CN109553572B (zh) * 2019-01-24 2021-10-26 重庆中邦科技有限公司 一种2,3,6-三氯吡啶的制备方法
CN111620813B (zh) * 2020-07-07 2023-08-01 天津科技大学 一种四氯吡啶连续氯化合成的方法
CN113244934B (zh) * 2021-05-25 2022-11-08 上海华谊（集团）公司 生产2,3,6-三氯吡啶用催化剂及其制备方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186994A (en) * 1962-10-18 1965-06-01 Dow Chemical Co Polychloropyridines
GB1053369A (es) * 1963-11-26
NL130304C (es) * 1964-02-12
GB1599783A (en) * 1978-02-15 1981-10-07 Ici Ltd Partial chlorination of 3-methyl pyridine
CA1089468A (en) * 1978-04-24 1980-11-11 The Dow Chemical Company Process for preparing 2,3,5,6-tetrachloropyridine and pentachloropyridine
JPS5543017A (en) * 1978-09-22 1980-03-26 Ishihara Sangyo Kaisha Ltd Preparation of 2-chloro-5-trichloromethylpyridine
US4281135A (en) * 1979-06-11 1981-07-28 The Dow Chemical Company Preparation of highly chlorinated pyridines
US4331811A (en) * 1981-03-12 1982-05-25 The Dow Chemical Company Preparation of 2,3-dichloro-5-trichloromethylpyridine
AU548249B2 (en) * 1981-05-13 1985-12-05 Imperial Chemical Industries Plc Production of 3-trichloromethyl and 3-trifluoro methyl- pyridines
EP0074192B1 (en) * 1981-09-03 1986-12-30 Imperial Chemical Industries Plc Chloro-trifluoromethyl pyridines
JPS5877863A (ja) * 1981-11-04 1983-05-11 Ishihara Sangyo Kaisha Ltd ３―クロロ―５―トリフルオロメチルピリジン系化合物の製造方法
US4968807A (en) * 1982-09-30 1990-11-06 The Dow Chemical Company Preparation of symmetrical tetrachloropyridine from chlorinated beta(trichloromethyl) pyridines employing a catalyst
EP0204848B1 (en) * 1985-05-31 1989-11-23 The Dow Chemical Company Preparation of symmetrical tetrachloropyridine from chlorinated beta - (trichloromethyl) pyridines employing a catalyst
US4849523A (en) * 1986-01-10 1989-07-18 The Dow Chemical Company Preparation of 2,3,4,6-tetrachloropyridine
IL78359A (en) * 1986-03-31 1989-12-15 Makhteshim Chem Works Ltd Vapor phase production of chlorinated pyridines from alpha-picoline
IL78341A (en) * 1986-03-31 1989-08-15 Makhteshim Chem Works Ltd Method of preparing 2,3,6-trichloropyridine and 2,3,5,6-tetrachloropyridine in the gas phase
EP0283531A1 (en) * 1987-03-24 1988-09-28 Makhteshim Chemical Works Limited Process for preparing 2,3,4,5-tetrachloro-6 (trichloro methyl) pyridine
US4785112A (en) * 1987-05-13 1988-11-15 The Dow Chemical Company Process for the production of 2,3,5,6-tetrachloropyridine and 2,3,6-trichloropyridine

Also Published As

Publication number Publication date
EP0544267B1 (en) 1996-04-03
DE69209621D1 (de) 1996-05-09
EP0544267A1 (en) 1993-06-02
JPH0656782A (ja) 1994-03-01
IL103877A0 (en) 1993-04-04
IL103877A (en) 1996-12-05
US5319088A (en) 1994-06-07
DE69209621T2 (de) 1996-08-22

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