DK107740C - Fremgangsmåde til fremstilling af dimethyl- eller methylethyl-maleinsyreanhydrid. - Google Patents

Fremgangsmåde til fremstilling af dimethyl- eller methylethyl-maleinsyreanhydrid.

Info

Publication number
DK107740C
DK107740C DK400059A DK400059A DK107740C DK 107740 C DK107740 C DK 107740C DK 400059 A DK400059 A DK 400059A DK 400059 A DK400059 A DK 400059A DK 107740 C DK107740 C DK 107740C
Authority
DK
Denmark
Prior art keywords
dimethyl
preparation
maleic anhydride
methyl ethyl
ethyl maleic
Prior art date
Application number
DK400059A
Other languages
English (en)
Inventor
Pieter Daniel Harkes
Original Assignee
Unilever Nv
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 Unilever Nv filed Critical Unilever Nv
Application granted granted Critical
Publication of DK107740C publication Critical patent/DK107740C/da

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
    • C07C51/567—Preparation of carboxylic acid anhydrides by reactions not involving carboxylic acid anhydride groups
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK400059A 1958-11-07 1959-11-06 Fremgangsmåde til fremstilling af dimethyl- eller methylethyl-maleinsyreanhydrid. DK107740C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3588658A GB870681A (en) 1958-11-07 1958-11-07 Substituted maleic anhydrides

Publications (1)

Publication Number Publication Date
DK107740C true DK107740C (da) 1967-07-03

Family

ID=10382631

Family Applications (1)

Application Number Title Priority Date Filing Date
DK400059A DK107740C (da) 1958-11-07 1959-11-06 Fremgangsmåde til fremstilling af dimethyl- eller methylethyl-maleinsyreanhydrid.

Country Status (4)

Country Link
CH (1) CH426769A (da)
DK (1) DK107740C (da)
ES (1) ES253205A1 (da)
GB (1) GB870681A (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639531A (en) * 1984-08-15 1987-01-27 Ciba-Geigy Corporation Process for the preparation of dimethylmaleic anhydride
US4644069A (en) * 1984-08-15 1987-02-17 Ciba-Geigy Corporation Process for the preparation of dimethylmaleic anhydride
AT388554B (de) * 1987-12-11 1989-07-25 Vianova Kunstharz Ag Verfahren zur herstellung von alkenylbernsteinsaeureanhydriden mit verbesserter eigenfarbe

Also Published As

Publication number Publication date
ES253205A1 (es) 1960-03-16
CH426769A (de) 1966-12-31
GB870681A (en) 1961-06-14

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