AT266068B - Process for the preparation of cyclic ester anhydrides of alpha-hydroxycarboxylic acids - Google Patents

Process for the preparation of cyclic ester anhydrides of alpha-hydroxycarboxylic acids

Info

Publication number
AT266068B
AT266068B AT954566A AT954566A AT266068B AT 266068 B AT266068 B AT 266068B AT 954566 A AT954566 A AT 954566A AT 954566 A AT954566 A AT 954566A AT 266068 B AT266068 B AT 266068B
Authority
AT
Austria
Prior art keywords
alpha
preparation
hydroxycarboxylic acids
cyclic ester
ester anhydrides
Prior art date
Application number
AT954566A
Other languages
German (de)
Original Assignee
Wolfen Filmfab Veb
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 Wolfen Filmfab Veb filed Critical Wolfen Filmfab Veb
Application granted granted Critical
Publication of AT266068B publication Critical patent/AT266068B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/10—1,4-Dioxanes; Hydrogenated 1,4-dioxanes
    • C07D319/12—1,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Polyesters Or Polycarbonates (AREA)
AT954566A 1965-12-18 1966-10-12 Process for the preparation of cyclic ester anhydrides of alpha-hydroxycarboxylic acids AT266068B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD11477665A DD53074A1 (en) 1965-12-18 1965-12-18 Process for the preparation of cyclic ester anhydrides of alpha-hydroxycarboxylic acids

Publications (1)

Publication Number Publication Date
AT266068B true AT266068B (en) 1968-11-11

Family

ID=5478733

Family Applications (1)

Application Number Title Priority Date Filing Date
AT954566A AT266068B (en) 1965-12-18 1966-10-12 Process for the preparation of cyclic ester anhydrides of alpha-hydroxycarboxylic acids

Country Status (3)

Country Link
AT (1) AT266068B (en)
CH (1) CH484099A (en)
DD (1) DD53074A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547267C3 (en) 1975-10-22 1979-05-03 Chemische Werke Huels Ag, 4370 Marl Process for the preparation of cyclic diesters of dodecanedioic acid
US5319107A (en) 1990-09-18 1994-06-07 Biopak Technology, Ltd. Method to produce cyclic esters
US5332839A (en) * 1990-09-18 1994-07-26 Biopak Technology, Ltd. Catalytic production of lactide directly from lactic acid
US5686630A (en) * 1993-09-29 1997-11-11 Chronopol, Inc. Purifying cyclic esters by aqueous solvent extraction
US5420304A (en) * 1992-03-19 1995-05-30 Biopak Technology, Ltd. Method to produce cyclic esters

Also Published As

Publication number Publication date
DD53074A1 (en) 1967-01-05
CH484099A (en) 1970-01-15

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