GB832855A - Catalytic dehydrogenation of n-methylpyrrolidine - Google Patents

Catalytic dehydrogenation of n-methylpyrrolidine

Info

Publication number
GB832855A
GB832855A GB3414557A GB3414557A GB832855A GB 832855 A GB832855 A GB 832855A GB 3414557 A GB3414557 A GB 3414557A GB 3414557 A GB3414557 A GB 3414557A GB 832855 A GB832855 A GB 832855A
Authority
GB
United Kingdom
Prior art keywords
methylpyrrolidine
hydrogen
vapour
platinum
catalytic dehydrogenation
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
GB3414557A
Inventor
Francis George Jeffers
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 GB3414557A priority Critical patent/GB832855A/en
Publication of GB832855A publication Critical patent/GB832855A/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
    • C07D207/30—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 two double bonds between ring members or between ring members and non-ring members
    • C07D207/32—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 two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C07D207/323—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 two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

N-methylpyrrole is produced by passing N-methylpyrrolidine vapour and hydrogen at elevated temperatures over a platinum or palladium catalyst supported on silica gel. The amount of platinum or palladium is conveniently from 1 to 10% of the weight of the gel and the process is carried out at a temperature of 200-500 DEG C. Preferably the proportion of hydrogen in the gaseous mixture is high, e.g. at least 5 molecular proportions of hydrogen to one of N-methylpyrrolidine vapour. The hydrogen issuing from the condensers may be recycled. A method of preparing the catalyst is given.
GB3414557A 1957-11-01 1957-11-01 Catalytic dehydrogenation of n-methylpyrrolidine Expired GB832855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3414557A GB832855A (en) 1957-11-01 1957-11-01 Catalytic dehydrogenation of n-methylpyrrolidine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3414557A GB832855A (en) 1957-11-01 1957-11-01 Catalytic dehydrogenation of n-methylpyrrolidine

Publications (1)

Publication Number Publication Date
GB832855A true GB832855A (en) 1960-04-13

Family

ID=10361944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3414557A Expired GB832855A (en) 1957-11-01 1957-11-01 Catalytic dehydrogenation of n-methylpyrrolidine

Country Status (1)

Country Link
GB (1) GB832855A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522269A (en) * 1967-09-13 1970-07-28 Cilag Chemie Dehydrogenation of pyrrolidine to pyrrole
EP0067360A2 (en) * 1981-06-12 1982-12-22 BASF Aktiengesellschaft Process for the preparation of pyrroles
US7125906B2 (en) 2002-04-03 2006-10-24 Astrazeneca Ab Indole derivatives having anti-angiogenetic activity

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522269A (en) * 1967-09-13 1970-07-28 Cilag Chemie Dehydrogenation of pyrrolidine to pyrrole
EP0067360A2 (en) * 1981-06-12 1982-12-22 BASF Aktiengesellschaft Process for the preparation of pyrroles
EP0067360A3 (en) * 1981-06-12 1983-08-17 Basf Aktiengesellschaft Process for the preparation of pyrroles
US7125906B2 (en) 2002-04-03 2006-10-24 Astrazeneca Ab Indole derivatives having anti-angiogenetic activity

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