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IT977223B - PROCESS OF PURIFICATION OF 2 PYROLIDON - Google Patents

PROCESS OF PURIFICATION OF 2 PYROLIDON

Info

Publication number
IT977223B
IT977223B IT4808773A IT4808773A IT977223B IT 977223 B IT977223 B IT 977223B IT 4808773 A IT4808773 A IT 4808773A IT 4808773 A IT4808773 A IT 4808773A IT 977223 B IT977223 B IT 977223B
Authority
IT
Italy
Prior art keywords
pyrolidon
purification
Prior art date
Application number
IT4808773A
Other languages
Italian (it)
Original Assignee
Pusztaszeri S
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 Pusztaszeri S filed Critical Pusztaszeri S
Application granted granted Critical
Publication of IT977223B publication Critical patent/IT977223B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrrole Compounds (AREA)
IT4808773A 1972-02-07 1973-02-06 PROCESS OF PURIFICATION OF 2 PYROLIDON IT977223B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22427472A 1972-02-07 1972-02-07

Publications (1)

Publication Number Publication Date
IT977223B true IT977223B (en) 1974-09-10

Family

ID=22839968

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4808773A IT977223B (en) 1972-02-07 1973-02-06 PROCESS OF PURIFICATION OF 2 PYROLIDON

Country Status (6)

Country Link
JP (1) JPS5212711B2 (en)
CA (1) CA999252A (en)
FR (1) FR2171258B1 (en)
GB (1) GB1398501A (en)
IT (1) IT977223B (en)
NL (1) NL7301652A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276215A (en) * 1977-07-25 1981-06-30 Gaf Corporation Purification of pyrrolidone

Also Published As

Publication number Publication date
CA999252A (en) 1976-11-02
NL7301652A (en) 1973-08-09
GB1398501A (en) 1975-06-25
FR2171258A1 (en) 1973-09-21
JPS4891062A (en) 1973-11-27
DE2305921A1 (en) 1973-08-16
JPS5212711B2 (en) 1977-04-08
DE2305921B2 (en) 1975-10-23
FR2171258B1 (en) 1980-08-08

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