AU2604499A - Method for producing dimeric cyclic esters - Google Patents

Method for producing dimeric cyclic esters

Info

Publication number
AU2604499A
AU2604499A AU26044/99A AU2604499A AU2604499A AU 2604499 A AU2604499 A AU 2604499A AU 26044/99 A AU26044/99 A AU 26044/99A AU 2604499 A AU2604499 A AU 2604499A AU 2604499 A AU2604499 A AU 2604499A
Authority
AU
Australia
Prior art keywords
cyclic esters
dimeric cyclic
producing dimeric
ester
mild
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.)
Abandoned
Application number
AU26044/99A
Inventor
Jean-Christophe Bogaert
Philippe Coszach
Serge Decouvreur
Philippe Degee
Frederic Van Gansberghe
Thierry Van Nieuwenhove
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.)
Brussels Biotech
Original Assignee
Brussels Biotech
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 Brussels Biotech filed Critical Brussels Biotech
Publication of AU2604499A publication Critical patent/AU2604499A/en
Abandoned legal-status Critical Current

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)
  • Polyesters Or Polycarbonates (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)

Abstract

The invention concerns a method for producing dimeric cyclic esters starting with a raw esterification material obtained either from mixing lactic and/or glycolic acid with one of its esters or by extraction at a predetermined time of the esterification process. Said method comprises mild and selective dimerization of the ester, followed by mild and selective cyclization of the dimerised ester and finally purification of the resulting raw material.
AU26044/99A 1998-02-24 1999-02-24 Method for producing dimeric cyclic esters Abandoned AU2604499A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9800142 1998-02-24
BE9800142A BE1011759A3 (en) 1998-02-24 1998-02-24 Method for producing cyclic esters.
PCT/BE1999/000027 WO1999043669A1 (en) 1998-02-24 1999-02-24 Method for producing dimeric cyclic esters

Publications (1)

Publication Number Publication Date
AU2604499A true AU2604499A (en) 1999-09-15

Family

ID=3891118

Family Applications (1)

Application Number Title Priority Date Filing Date
AU26044/99A Abandoned AU2604499A (en) 1998-02-24 1999-02-24 Method for producing dimeric cyclic esters

Country Status (7)

Country Link
EP (1) EP1056741B1 (en)
AT (1) ATE231503T1 (en)
AU (1) AU2604499A (en)
BE (1) BE1011759A3 (en)
DE (1) DE69905016T2 (en)
ES (1) ES2189392T3 (en)
WO (1) WO1999043669A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT506038B1 (en) 2007-11-14 2015-02-15 Jungbunzlauer Austria Ag METHOD FOR THE PRODUCTION OF CYCLIC DIESTERS OF L, D AND D, L-MILKYLIC ACID
AT506768B1 (en) 2008-04-16 2013-10-15 Jungbunzlauer Austria Ag METHOD FOR CLEANING CYCLIC DIESTERS OF L- BZW. D-LACTIC
AT507580B1 (en) * 2008-11-19 2011-10-15 Jungbunzlauer Austria Ag PROCESS FOR CLEANING CYCLIC DIESTER OF MILKY ACID
EP3250547B1 (en) 2015-01-29 2019-05-01 Council of Scientific and Industrial Research A novel process for the preparation of hydroxyl functional esters and polyesters therefrom
BE1029038B1 (en) 2021-01-21 2022-08-22 Noosa PROCESS FOR PREPARING POLYLACTIC ACID FROM LACTIC ACID FROM THE RECYCLING OF ROLLERS SUPPORTING REELS OF WIRE OR FILM AND SUPPORT ROLLERS INTENDED FOR THIS PURPOSE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5319107A (en) * 1990-09-18 1994-06-07 Biopak Technology, Ltd. Method to produce cyclic esters
US5326887A (en) * 1991-02-27 1994-07-05 E. I. Du Pont De Nemours And Company Process for the preparation of 1,4-dioxane-2,5-diones
US6326458B1 (en) * 1992-01-24 2001-12-04 Cargill, Inc. Continuous process for the manufacture of lactide and lactide polymers
DE4407035A1 (en) * 1994-03-03 1995-09-07 Basf Ag Di:lactone(s) prodn.

Also Published As

Publication number Publication date
BE1011759A3 (en) 1999-12-07
WO1999043669A1 (en) 1999-09-02
DE69905016T2 (en) 2003-10-09
EP1056741B1 (en) 2003-01-22
EP1056741A1 (en) 2000-12-06
DE69905016D1 (en) 2003-02-27
ES2189392T3 (en) 2003-07-01
ATE231503T1 (en) 2003-02-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase