GB515865A - Improvements in the manufacture and production of pyrroles - Google Patents

Improvements in the manufacture and production of pyrroles

Info

Publication number
GB515865A
GB515865A GB1956538A GB1956538A GB515865A GB 515865 A GB515865 A GB 515865A GB 1956538 A GB1956538 A GB 1956538A GB 1956538 A GB1956538 A GB 1956538A GB 515865 A GB515865 A GB 515865A
Authority
GB
United Kingdom
Prior art keywords
pyrroles
production
methyl
group
manufacture
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
GB1956538A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1956538A priority Critical patent/GB515865A/en
Publication of GB515865A publication Critical patent/GB515865A/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)
  • Catalysts (AREA)

Abstract

515,865. Pyrroles; catalytic dehydrogenation. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.). July 1, 1938, No. 19565. [Class . 1 (i)] [Also in Group IV] Pyrroles are obtained by leading vapours of pyrrolidines or pyrrolines with or without an addition of inert gas at a temperature of 250- 500‹C. over metals of the second group or their compounds. Specified catalysts are oxides of magnesium,'calcium, zinc, cadmium, and beryllium. They may be applied to carriers and activated by small additions of heavy metal compounds. The production of N-methyl-, alpha-methyl-, N-benzyl-, and N-phenyl-pyrroles is specifically referred to.
GB1956538A 1938-07-01 1938-07-01 Improvements in the manufacture and production of pyrroles Expired GB515865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1956538A GB515865A (en) 1938-07-01 1938-07-01 Improvements in the manufacture and production of pyrroles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1956538A GB515865A (en) 1938-07-01 1938-07-01 Improvements in the manufacture and production of pyrroles

Publications (1)

Publication Number Publication Date
GB515865A true GB515865A (en) 1939-12-15

Family

ID=10131500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1956538A Expired GB515865A (en) 1938-07-01 1938-07-01 Improvements in the manufacture and production of pyrroles

Country Status (1)

Country Link
GB (1) GB515865A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671789A (en) * 1951-09-07 1954-03-09 Gen Aniline & Film Corp Production of n-phenyl pyrrole
EP0067360A2 (en) * 1981-06-12 1982-12-22 BASF Aktiengesellschaft Process for the preparation of pyrroles
EP0608688A1 (en) * 1993-01-23 1994-08-03 BASF Aktiengesellschaft Process for the purification of crude pyrroles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671789A (en) * 1951-09-07 1954-03-09 Gen Aniline & Film Corp Production of n-phenyl 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
EP0608688A1 (en) * 1993-01-23 1994-08-03 BASF Aktiengesellschaft Process for the purification of crude pyrroles
US5502213A (en) * 1993-01-23 1996-03-26 Basf Aktiengesellschaft Purification of crude pyrroles

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