BE492044A - Process for the indirect separation by oxidation of acetylene-gamma-glycols with the formation of lactides or of polycondensation polymers of alpha-oxyacids - Google Patents

Process for the indirect separation by oxidation of acetylene-gamma-glycols with the formation of lactides or of polycondensation polymers of alpha-oxyacids

Info

Publication number
BE492044A
BE492044A BE492044A BE492044A BE492044A BE 492044 A BE492044 A BE 492044A BE 492044 A BE492044 A BE 492044A BE 492044 A BE492044 A BE 492044A BE 492044 A BE492044 A BE 492044A
Authority
BE
Belgium
Prior art keywords
oxyacids
lactides
acetylene
glycols
gamma
Prior art date
Application number
BE492044A
Other languages
French (fr)
Original Assignee
Lonza Usines Electriques Et Chimiques Sa
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 Lonza Usines Electriques Et Chimiques Sa filed Critical Lonza Usines Electriques Et Chimiques Sa
Publication of BE492044A publication Critical patent/BE492044A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/28—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/293—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
BE492044A 1948-11-06 1949-11-07 Process for the indirect separation by oxidation of acetylene-gamma-glycols with the formation of lactides or of polycondensation polymers of alpha-oxyacids BE492044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58804XA 1948-11-06 1948-11-06

Publications (1)

Publication Number Publication Date
BE492044A true BE492044A (en) 1950-05-08

Family

ID=41061270

Family Applications (1)

Application Number Title Priority Date Filing Date
BE492044A BE492044A (en) 1948-11-06 1949-11-07 Process for the indirect separation by oxidation of acetylene-gamma-glycols with the formation of lactides or of polycondensation polymers of alpha-oxyacids

Country Status (1)

Country Link
BE (1) BE492044A (en)

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