GB1324644A - Process for the manufacture of 4,4-bipyridyls - Google Patents

Process for the manufacture of 4,4-bipyridyls

Info

Publication number
GB1324644A
GB1324644A GB5350669A GB1324644DA GB1324644A GB 1324644 A GB1324644 A GB 1324644A GB 5350669 A GB5350669 A GB 5350669A GB 1324644D A GB1324644D A GB 1324644DA GB 1324644 A GB1324644 A GB 1324644A
Authority
GB
United Kingdom
Prior art keywords
bipyridyls
cupric
pyridyl
alkoxy
alkylthio group
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
GB5350669A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB1324644A publication Critical patent/GB1324644A/en
Expired 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
    • C07D213/06—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 containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
    • C07D213/22—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 containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing two or more pyridine rings directly linked together, e.g. bipyridyl
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)

Abstract

1324644 4,4<SP>1</SP>-Bipyridyls IMPERIAL CHEMICAL INDUSTRIES Ltd 3 Dec 1970 [31 Oct 1969] 53506/69 Heading C2C A process for making a 4,41-bipyridyl comprises interacting a corresponding substituted pyridine derivative in the liquid phase with ammonia or ammonium ions in the presence of molecular oxygen, the substituted pyridine derivative being a 4-(4-pyridyl)-2,6-disubstituted tetrahydropyran (or tetrahydrothiopyran) wherein each of the 2- and 6-substituents is an alkoxy or an alkylthio group or 3-(4-pyridyl)- 1,1,5,5-tetrasubstituted pentane wherein each substituent is an alkoxy or alkylthio group. The reaction is preferably effected in the presence of cupric or ferric ions and a catalyst capable of regenerating cupric or ferric from cuprous or ferrous respectively. The bipyridyls may be converted to N,N<SP>1</SP>-disubstituted bipyridylium salts which are useful as herbicides.
GB5350669A 1969-10-31 1969-10-31 Process for the manufacture of 4,4-bipyridyls Expired GB1324644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5350669 1969-10-31

Publications (1)

Publication Number Publication Date
GB1324644A true GB1324644A (en) 1973-07-25

Family

ID=10468053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5350669A Expired GB1324644A (en) 1969-10-31 1969-10-31 Process for the manufacture of 4,4-bipyridyls

Country Status (1)

Country Link
GB (1) GB1324644A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878607A2 (en) * 1997-05-13 1998-11-18 Halliburton Energy Services, Inc. Quaternary ammonium compounds useful for inhibiting metal corrosion
EP0881356A2 (en) * 1997-05-13 1998-12-02 Halliburton Energy Services, Inc. Preparation of aromatic amines and their use as metal corrosion inhibitors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878607A2 (en) * 1997-05-13 1998-11-18 Halliburton Energy Services, Inc. Quaternary ammonium compounds useful for inhibiting metal corrosion
EP0881356A2 (en) * 1997-05-13 1998-12-02 Halliburton Energy Services, Inc. Preparation of aromatic amines and their use as metal corrosion inhibitors
EP0878607A3 (en) * 1997-05-13 1999-05-19 Halliburton Energy Services, Inc. Quaternary ammonium compounds useful for inhibiting metal corrosion
EP0881356A3 (en) * 1997-05-13 1999-05-19 Halliburton Energy Services, Inc. Preparation of aromatic amines and their use as metal corrosion inhibitors

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee