GB1550726A - Process for the production of 2,3:5,6-bil-(cicloalkeno)-pyridines - Google Patents

Process for the production of 2,3:5,6-bil-(cicloalkeno)-pyridines

Info

Publication number
GB1550726A
GB1550726A GB36774/77A GB3677477A GB1550726A GB 1550726 A GB1550726 A GB 1550726A GB 36774/77 A GB36774/77 A GB 36774/77A GB 3677477 A GB3677477 A GB 3677477A GB 1550726 A GB1550726 A GB 1550726A
Authority
GB
United Kingdom
Prior art keywords
pyridines
cicloalkeno
bil
production
cycloalkeno
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
GB36774/77A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1550726A publication Critical patent/GB1550726A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
    • C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
    • C07D221/04—Ortho- or peri-condensed ring systems
    • C07D221/06—Ring systems of three rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
    • C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
    • C07D221/04—Ortho- or peri-condensed ring systems
    • C07D221/06—Ring systems of three rings
    • C07D221/16—Ring systems of three rings containing carbocyclic rings other than six-membered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Pyridine Compounds (AREA)

Abstract

Preparation of 2,3:5,6-bis-(cycloalkeno)pyridines by reacting cycloalkanones, which have at least one reactive methylene group adjacent to the keto group, with aliphatic aldehydes and with ammonia in the gas phase in the presence of a catalyst, which has a dehydrating and dehydrogenating action, at 250-550 DEG C. The substituted pyridines which are obtained are important intermediates for preparing drugs, plant protection agents and plastics. The process is a one-stage process on an industrial scale and can be carried out simply and with a large yield, and the necessary starting materials are readily available.
GB36774/77A 1977-08-16 1977-09-02 Process for the production of 2,3:5,6-bil-(cicloalkeno)-pyridines Expired GB1550726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2736888A DE2736888C2 (en) 1977-08-16 1977-08-16 Process for the preparation of 2,3: 5,6-bis (cycloalkeno) pyridines

Publications (1)

Publication Number Publication Date
GB1550726A true GB1550726A (en) 1979-08-22

Family

ID=6016504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36774/77A Expired GB1550726A (en) 1977-08-16 1977-09-02 Process for the production of 2,3:5,6-bil-(cicloalkeno)-pyridines

Country Status (11)

Country Link
JP (1) JPS5432475A (en)
BE (1) BE858391A (en)
BR (1) BR7705883A (en)
CA (1) CA1088941A (en)
CH (1) CH631708A5 (en)
DE (1) DE2736888C2 (en)
FR (1) FR2400510A1 (en)
GB (1) GB1550726A (en)
IL (1) IL52887A (en)
IT (1) IT1143598B (en)
NL (1) NL184002C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002079166A1 (en) * 2001-03-30 2002-10-10 Council Of Scientific And Industrial Research A process for the synthesis of an annulated pyridine base
US6495690B2 (en) * 2001-03-27 2002-12-17 Council Of Scientific And Industrial Research Process for the synthesis of an annulated pyridine base

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR875010A (en) * 1939-01-06 1942-09-03 Schering Ag Process for the preparation of heterocyclic compounds of the pyridine series
US3020282A (en) * 1957-07-22 1962-02-06 Reilly Tar & Chem Corp Process of preparing quinoline
US3501479A (en) * 1967-05-19 1970-03-17 American Cyanamid Co Dihydroquinolines and substituted dihydroquinolines and method of preparing the same
BE790121A (en) * 1971-10-15 1973-02-01 Degussa CATALYSTS FOR THE PREPARATION OF PYRIDINE AND 3-METHYLPYRIDINE
DE2224160C3 (en) * 1972-05-18 1979-10-04 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Process for the production of catalysts for the production of pyridine and 3-methylpyridine
DE2239801C3 (en) * 1972-08-12 1979-08-23 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Process for the manufacture of catalysts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6495690B2 (en) * 2001-03-27 2002-12-17 Council Of Scientific And Industrial Research Process for the synthesis of an annulated pyridine base
WO2002079166A1 (en) * 2001-03-30 2002-10-10 Council Of Scientific And Industrial Research A process for the synthesis of an annulated pyridine base

Also Published As

Publication number Publication date
NL184002C (en) 1989-03-16
IL52887A0 (en) 1977-11-30
JPS5432475A (en) 1979-03-09
CA1088941A (en) 1980-11-04
DE2736888C2 (en) 1984-03-08
NL7709708A (en) 1979-02-20
BE858391A (en) 1978-03-02
DE2736888A1 (en) 1979-03-01
FR2400510B1 (en) 1982-07-16
IL52887A (en) 1980-01-31
IT1143598B (en) 1986-10-22
NL184002B (en) 1988-10-17
BR7705883A (en) 1979-08-07
FR2400510A1 (en) 1979-03-16
CH631708A5 (en) 1982-08-31
JPS6232189B2 (en) 1987-07-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee