FR2134547B1 - - Google Patents

Info

Publication number
FR2134547B1
FR2134547B1 FR7214864A FR7214864A FR2134547B1 FR 2134547 B1 FR2134547 B1 FR 2134547B1 FR 7214864 A FR7214864 A FR 7214864A FR 7214864 A FR7214864 A FR 7214864A FR 2134547 B1 FR2134547 B1 FR 2134547B1
Authority
FR
France
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
FR7214864A
Other languages
French (fr)
Other versions
FR2134547A1 (enrdf_load_stackoverflow
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.)
Gelsenberg AG
Original Assignee
Gelsenberg AG
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 Gelsenberg AG filed Critical Gelsenberg AG
Publication of FR2134547A1 publication Critical patent/FR2134547A1/fr
Application granted granted Critical
Publication of FR2134547B1 publication Critical patent/FR2134547B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Furan Compounds (AREA)
FR7214864A 1971-04-27 1972-04-26 Expired FR2134547B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712120505 DE2120505C3 (de) 1971-04-27 1971-04-27 Verfahren zur Gewinnung von reinem 3,4 3\4' Benzophenontetracar bonsauredianhydnd

Publications (2)

Publication Number Publication Date
FR2134547A1 FR2134547A1 (enrdf_load_stackoverflow) 1972-12-08
FR2134547B1 true FR2134547B1 (enrdf_load_stackoverflow) 1976-08-06

Family

ID=5806025

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7214864A Expired FR2134547B1 (enrdf_load_stackoverflow) 1971-04-27 1972-04-26

Country Status (3)

Country Link
DE (1) DE2120505C3 (enrdf_load_stackoverflow)
FR (1) FR2134547B1 (enrdf_load_stackoverflow)
GB (1) GB1340463A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE2120505A1 (enrdf_load_stackoverflow) 1972-11-23
DE2120505C3 (de) 1973-11-29
DE2120505B2 (de) 1973-05-03
GB1340463A (en) 1973-12-12
FR2134547A1 (enrdf_load_stackoverflow) 1972-12-08

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse