GB1468046A - Production of sterically hindered 5-membered heterocyclic rings containing nitrogen - Google Patents

Production of sterically hindered 5-membered heterocyclic rings containing nitrogen

Info

Publication number
GB1468046A
GB1468046A GB2880374A GB2880374A GB1468046A GB 1468046 A GB1468046 A GB 1468046A GB 2880374 A GB2880374 A GB 2880374A GB 2880374 A GB2880374 A GB 2880374A GB 1468046 A GB1468046 A GB 1468046A
Authority
GB
United Kingdom
Prior art keywords
membered heterocyclic
sterically hindered
heterocyclic rings
containing nitrogen
rings containing
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
GB2880374A
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
Priority to GB2880374A priority Critical patent/GB1468046A/en
Publication of GB1468046A publication Critical patent/GB1468046A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D207/20—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

1468046 5-Membered heterocyclic rings containing nitrogen IMPERIAL CHEMICAL INDUSTRIES Ltd 22 May 1975 [28 June 1974] 28803/74 Heading C2C The invention comprises a process for the production of sterically hindered 5-membered heterocyclic rings containing nitrogen by the catalytic reductive cyclization of sterically hindered amines of the formula where R 1 is an organic group consisting of hydrogen and carbon atoms and optionally also oxygen and/or sulphur and/or nitrogen and/or halogen atoms, R 2 , R 3 , R 6 and R 7 may be the same or different groups and are organic groups consisting of hydrogen and carbon atoms and optionally also oxygen atoms and any two of R 2 , R 3 , R 6 and R 7 (particularly R 2 and R 3 and/or R 6 and R 7 ) may be linked together to form a single group and R 4 , R 5 , R 8 and R 9 may be the same or different and are hydrogen or an organic group. The example uses a catalyst of palladium on charcoal and subsequently platinium oxide.
GB2880374A 1975-05-22 1975-05-22 Production of sterically hindered 5-membered heterocyclic rings containing nitrogen Expired GB1468046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2880374A GB1468046A (en) 1975-05-22 1975-05-22 Production of sterically hindered 5-membered heterocyclic rings containing nitrogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2880374A GB1468046A (en) 1975-05-22 1975-05-22 Production of sterically hindered 5-membered heterocyclic rings containing nitrogen

Publications (1)

Publication Number Publication Date
GB1468046A true GB1468046A (en) 1977-03-23

Family

ID=10281435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2880374A Expired GB1468046A (en) 1975-05-22 1975-05-22 Production of sterically hindered 5-membered heterocyclic rings containing nitrogen

Country Status (1)

Country Link
GB (1) GB1468046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020298A1 (en) * 1979-05-29 1980-12-04 Anic Spa METHOD FOR PRODUCING 2,2-DIALKYL-4-METHYL-5,5-DIALKYL-3-FORMYL-3-PYRROLINE
EP0186223A1 (en) * 1984-11-16 1986-07-02 Consiglio Nazionale Delle Ricerche 3-AZA-7-hydroxy-2,2,4,4-tetraalkylbicyclo[3.3.0] octonanes;process for their preparation, intermediates suitable to that purpose, and process for the production of these latter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020298A1 (en) * 1979-05-29 1980-12-04 Anic Spa METHOD FOR PRODUCING 2,2-DIALKYL-4-METHYL-5,5-DIALKYL-3-FORMYL-3-PYRROLINE
FR2457857A1 (en) * 1979-05-29 1980-12-26 Anic Spa PROCESS FOR THE PREPARATION OF 2,2-DIALKYL-4-METHYL-5,5-DIALKYL-3-FORMYL-3-PYRROLINE, AND PRODUCTS THUS OBTAINED
EP0186223A1 (en) * 1984-11-16 1986-07-02 Consiglio Nazionale Delle Ricerche 3-AZA-7-hydroxy-2,2,4,4-tetraalkylbicyclo[3.3.0] octonanes;process for their preparation, intermediates suitable to that purpose, and process for the production of these latter

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Legal Events

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