ES8203347A1 - Un procedimiento para producir 2,3,5-tricloropiridina - Google Patents

Un procedimiento para producir 2,3,5-tricloropiridina

Info

Publication number
ES8203347A1
ES8203347A1 ES502110A ES502110A ES8203347A1 ES 8203347 A1 ES8203347 A1 ES 8203347A1 ES 502110 A ES502110 A ES 502110A ES 502110 A ES502110 A ES 502110A ES 8203347 A1 ES8203347 A1 ES 8203347A1
Authority
ES
Spain
Prior art keywords
trichloropyridine
preparation
dichloropyrid
pyridone
pyrrolidino
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
ES502110A
Other languages
English (en)
Other versions
ES502110A0 (es
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of ES8203347A1 publication Critical patent/ES8203347A1/es
Publication of ES502110A0 publication Critical patent/ES502110A0/es
Granted 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

UNPROCEDIMIENTO PARA PRODUCIR 2,3,5-TRICLOROPIRIDINA. CONSISTE EN HACER REACCIONAR 3,5-DICLORO-2-PIRIDINA A UNA TEMPERATURA COMPRENDIDA ENTRE 30 Y 150 GRADOS CENTIGRADOS (PREFERENTEMENTE DE 50 A 90 GRADOS CENTIGRADOS) CON FOSGENO EN PRESENCIA DE UNA FORMAMIDA N,N-DISUSTITUIDA Y EN PRESENCIA DE UN DISOLVENTE INERTE, TAL COMO UN HIDROCARBURO AROMATICO, UN HIDROCARBURO ALIFATICO, UN HIDROCARBURO CICLOALIFTICO, UN HIDROCARBURO AROMATICO HALOGENADO O UN ESTER DE ACIDO CARBOXILICO ALIFATICO (PREFERENTEMENTE SE EMPLEA TOLUENO).
ES502110A 1980-05-12 1981-05-11 Un procedimiento para producir 2,3,5-tricloropiridina Granted ES502110A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/148,849 US4287347A (en) 1980-05-12 1980-05-12 Process for producing 2,3,5-trichloropyridine

Publications (2)

Publication Number Publication Date
ES8203347A1 true ES8203347A1 (es) 1982-04-01
ES502110A0 ES502110A0 (es) 1982-04-01

Family

ID=22527686

Family Applications (1)

Application Number Title Priority Date Filing Date
ES502110A Granted ES502110A0 (es) 1980-05-12 1981-05-11 Un procedimiento para producir 2,3,5-tricloropiridina

Country Status (11)

Country Link
US (1) US4287347A (es)
EP (1) EP0040176B1 (es)
JP (1) JPS577469A (es)
AR (1) AR228453A1 (es)
AT (1) ATE6255T1 (es)
BR (1) BR8102920A (es)
CA (1) CA1137088A (es)
DE (1) DE3162242D1 (es)
ES (1) ES502110A0 (es)
IL (1) IL62844A (es)
ZA (1) ZA813111B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404388A (en) * 1981-08-14 1983-09-13 Ciba-Geigy Corporation Process for producing 2-chloropyridines
US4563531A (en) * 1982-09-24 1986-01-07 Kalama Chemical Inc. Process for producing 2,3,5-trichloropyridine
US4515953A (en) * 1983-04-22 1985-05-07 Kalama Chemical, Inc. Production of polychlorinated pyridine mixtures by liquid phase chlorination of pyridine or pyridine hydrochloride
CH663957A5 (de) * 1985-06-25 1988-01-29 Lonza Ag Verfahren zur herstellung von 3,5-dichlor-2-pyridon.
US5068333A (en) * 1990-03-07 1991-11-26 Pfizer Inc. 6-chloro-3,4-dihydro-pyrano [2,3-b]pyridines having the R configuration
US6051714A (en) * 1998-03-12 2000-04-18 Reilly Industries, Inc. Processes for dechlorinating pyridines
CN105503707A (zh) * 2016-01-22 2016-04-20 江苏丰山集团股份有限公司 一种2,3,5-三氯吡啶的制备方法
CN110483382A (zh) * 2019-09-18 2019-11-22 甘肃青宇新材料有限公司 一种2-氯-5-氯甲基吡啶的绿色合成方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111938A (en) * 1977-09-14 1978-09-05 The Dow Chemical Company Preparation of 2,3,5-trichloropyridine
DE2809334A1 (de) * 1978-03-03 1979-09-13 Ici Ltd Verfahren zur herstellung von 2,3,5- trichloropyridin

Also Published As

Publication number Publication date
IL62844A (en) 1984-08-31
AR228453A1 (es) 1983-03-15
ATE6255T1 (de) 1984-03-15
JPS577469A (en) 1982-01-14
BR8102920A (pt) 1982-02-02
EP0040176A1 (de) 1981-11-18
DE3162242D1 (en) 1984-03-22
EP0040176B1 (de) 1984-02-15
CA1137088A (en) 1982-12-07
ES502110A0 (es) 1982-04-01
IL62844A0 (en) 1981-07-31
US4287347A (en) 1981-09-01
ZA813111B (en) 1982-05-26

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