CA1018989A - PURIFICATION OF .gamma.-OXO-2-DIBENZOFURANBUTYRIC ACID - Google Patents

PURIFICATION OF .gamma.-OXO-2-DIBENZOFURANBUTYRIC ACID

Info

Publication number
CA1018989A
CA1018989A CA167,339A CA167339A CA1018989A CA 1018989 A CA1018989 A CA 1018989A CA 167339 A CA167339 A CA 167339A CA 1018989 A CA1018989 A CA 1018989A
Authority
CA
Canada
Prior art keywords
dibenzofuranbutyric
oxo
gamma
purification
acid
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
CA167,339A
Other languages
English (en)
French (fr)
Other versions
CA167339S (en
Inventor
Thomas A. Dobson
Guenther Schilling
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.)
Wyeth LLC
Original Assignee
American Home Products Corp
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 American Home Products Corp filed Critical American Home Products Corp
Application granted granted Critical
Publication of CA1018989A publication Critical patent/CA1018989A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/91—Dibenzofurans; Hydrogenated dibenzofurans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Furan Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA167,339A 1972-10-30 1973-03-27 PURIFICATION OF .gamma.-OXO-2-DIBENZOFURANBUTYRIC ACID Expired CA1018989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/302,160 US3985774A (en) 1972-10-30 1972-10-30 Purification of γ-oxo-2-dibenzofuranbutyric acid

Publications (1)

Publication Number Publication Date
CA1018989A true CA1018989A (en) 1977-10-11

Family

ID=23166521

Family Applications (1)

Application Number Title Priority Date Filing Date
CA167,339A Expired CA1018989A (en) 1972-10-30 1973-03-27 PURIFICATION OF .gamma.-OXO-2-DIBENZOFURANBUTYRIC ACID

Country Status (15)

Country Link
US (1) US3985774A (xx)
JP (1) JPS4972242A (xx)
BE (1) BE798240A (xx)
CA (1) CA1018989A (xx)
CH (1) CH583724A5 (xx)
DE (1) DE2314869A1 (xx)
DK (1) DK132025C (xx)
ES (1) ES413751A1 (xx)
FR (1) FR2262978B1 (xx)
GB (1) GB1428564A (xx)
IE (1) IE37417B1 (xx)
NL (1) NL7305150A (xx)
SE (1) SE382986B (xx)
SU (1) SU499810A3 (xx)
ZA (1) ZA731862B (xx)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733266A (en) * 1956-01-31 mckinnis
US2513273A (en) * 1948-02-06 1950-07-04 Searle & Co Acenaphthoyl alkanoic acids and derivatives thereof
US2569440A (en) * 1949-08-11 1951-10-02 Texas Co Separation of isophthalic acid from terephthalic acid by noncatalytic esterification
US2773091A (en) * 1953-10-12 1956-12-04 Searle & Co Fluorantheneoxocarboxylic acids and the production thereof
US2813120A (en) * 1956-02-06 1957-11-12 Union Oil Co Separation of terephthalic acid from isophthalic acid
US3649651A (en) * 1969-07-02 1972-03-14 American Home Prod Dibenzofuran derivatives and preparation thereof

Also Published As

Publication number Publication date
DE2314869A1 (de) 1974-05-09
FR2262978A1 (xx) 1975-10-03
ES413751A1 (es) 1976-01-16
DK132025C (da) 1976-03-22
FR2262978B1 (xx) 1977-05-27
NL7305150A (xx) 1974-05-02
SE382986B (sv) 1976-02-23
SU499810A3 (ru) 1976-01-15
IE37417B1 (en) 1977-07-20
US3985774A (en) 1976-10-12
BE798240A (fr) 1973-10-15
JPS4972242A (xx) 1974-07-12
AU5365273A (en) 1974-09-26
IE37417L (en) 1974-04-30
DK132025B (da) 1975-10-13
CH583724A5 (xx) 1977-01-14
USB302160I5 (xx) 1976-02-03
GB1428564A (en) 1976-03-17
ZA731862B (en) 1974-11-27

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