GB1011322A - Dehydrogenation of piperidines - Google Patents

Dehydrogenation of piperidines

Info

Publication number
GB1011322A
GB1011322A GB1771962A GB1771962A GB1011322A GB 1011322 A GB1011322 A GB 1011322A GB 1771962 A GB1771962 A GB 1771962A GB 1771962 A GB1771962 A GB 1771962A GB 1011322 A GB1011322 A GB 1011322A
Authority
GB
United Kingdom
Prior art keywords
piperidines
pyridine
dehydrogenation
platinum
hydrogen
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
GB1771962A
Inventor
Gerald Alfred Silverstone
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 GB1771962A priority Critical patent/GB1011322A/en
Publication of GB1011322A publication Critical patent/GB1011322A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrogenated Pyridines (AREA)

Abstract

N-Alkylpiperidines alone or mixed with piperidine are dehydrogenated by passing them with hydrogen over a dehydrogenation catalyst consisting of a platinum metal at elevated temperatures. The products are pyridine with some alkyl pyridines. To increase the yield of pyridine at least 7 times the molar quantity of hydrogen based on piperidines should be used. The preferred catalyst is platinum or palladium supported on silica gel and the preferred temperature range for carrying out the process is 300-450 DEG C. Specification 744,928 is referred to.
GB1771962A 1962-05-08 1962-05-08 Dehydrogenation of piperidines Expired GB1011322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1771962A GB1011322A (en) 1962-05-08 1962-05-08 Dehydrogenation of piperidines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1771962A GB1011322A (en) 1962-05-08 1962-05-08 Dehydrogenation of piperidines

Publications (1)

Publication Number Publication Date
GB1011322A true GB1011322A (en) 1965-11-24

Family

ID=10100036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1771962A Expired GB1011322A (en) 1962-05-08 1962-05-08 Dehydrogenation of piperidines

Country Status (1)

Country Link
GB (1) GB1011322A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061982A1 (en) * 1981-04-01 1982-10-06 Rhone-Poulenc Chimie Process for the preparation of pyridine and of substituted pyridines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061982A1 (en) * 1981-04-01 1982-10-06 Rhone-Poulenc Chimie Process for the preparation of pyridine and of substituted pyridines
FR2503156A1 (en) * 1981-04-01 1982-10-08 Rhone Poulenc Spec Chim PROCESS FOR THE PREPARATION OF PYRIDINE AND SUBSTITUTED PYRIDINES
US4401819A (en) * 1981-04-01 1983-08-30 Rhone-Poulenc Specialites Chimiques Process for the preparation of pyridine and substituted pyridines

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