DE1543958A1 - Verfahren zur Herstellung cyclischer Esteranhydride von alpha-Hydroxycarbonsaeuren - Google Patents

Verfahren zur Herstellung cyclischer Esteranhydride von alpha-Hydroxycarbonsaeuren

Info

Publication number
DE1543958A1
DE1543958A1 DE19661543958 DE1543958A DE1543958A1 DE 1543958 A1 DE1543958 A1 DE 1543958A1 DE 19661543958 DE19661543958 DE 19661543958 DE 1543958 A DE1543958 A DE 1543958A DE 1543958 A1 DE1543958 A1 DE 1543958A1
Authority
DE
Germany
Prior art keywords
alpha
hydroxycarboxylic acids
cyclic ester
ester anhydrides
anhydrides
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.)
Pending
Application number
DE19661543958
Other languages
English (en)
Inventor
Andratschke Dipl-Chem Dr Peter
Boan Dipl-Chem Dr Christoph
Vetter Dipl-Chem Dr Wilfried
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.)
Filmfabrik Wolfen VEB
Original Assignee
Filmfabrik Wolfen 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 Filmfabrik Wolfen VEB filed Critical Filmfabrik Wolfen VEB
Priority to DEV0030187 priority Critical
Publication of DE1543958A1 publication Critical patent/DE1543958A1/de
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D319/00Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/101,4-Dioxanes; Hydrogenated 1,4-dioxanes
    • C07D319/121,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings
DE19661543958 1966-01-20 1966-01-20 Verfahren zur Herstellung cyclischer Esteranhydride von alpha-Hydroxycarbonsaeuren Pending DE1543958A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV0030187 1966-01-20

Publications (1)

Publication Number Publication Date
DE1543958A1 true DE1543958A1 (de) 1970-02-05

Family

ID=7585474

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661543958 Pending DE1543958A1 (de) 1966-01-20 1966-01-20 Verfahren zur Herstellung cyclischer Esteranhydride von alpha-Hydroxycarbonsaeuren

Country Status (1)

Country Link
DE (1) DE1543958A1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632103A1 (de) * 1986-09-20 1988-03-24 Boehringer Ingelheim Kg Verfahren zur herstellung von lactid
DE3636187A1 (de) * 1986-10-24 1988-05-19 Boehringer Ingelheim Kg Kontinuierliches verfahren zur herstellung von glykolid
DE3708915A1 (de) * 1987-03-19 1988-09-29 Boehringer Ingelheim Kg Verfahren zur herstellung von lactid
US5142023A (en) * 1992-01-24 1992-08-25 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5247059A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for the manufacture of a purified lactide from esters of lactic acid
US5247058A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5258488A (en) * 1992-01-24 1993-11-02 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5338822A (en) * 1992-10-02 1994-08-16 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
US5525706A (en) * 1992-10-02 1996-06-11 Cargill, Incorporated Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof
US6005067A (en) * 1992-01-24 1999-12-21 Cargill Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US6005068A (en) * 1992-10-02 1999-12-21 Cargill Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
US6326458B1 (en) 1992-01-24 2001-12-04 Cargill, Inc. Continuous process for the manufacture of lactide and lactide polymers

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632103A1 (de) * 1986-09-20 1988-03-24 Boehringer Ingelheim Kg Verfahren zur herstellung von lactid
DE3636187A1 (de) * 1986-10-24 1988-05-19 Boehringer Ingelheim Kg Kontinuierliches verfahren zur herstellung von glykolid
DE3708915A1 (de) * 1987-03-19 1988-09-29 Boehringer Ingelheim Kg Verfahren zur herstellung von lactid
US5142023A (en) * 1992-01-24 1992-08-25 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5247059A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for the manufacture of a purified lactide from esters of lactic acid
US5247058A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5258488A (en) * 1992-01-24 1993-11-02 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5274073A (en) * 1992-01-24 1993-12-28 Cargill, Incorporated Continuous process for manufacture of a purified lactide
US6326458B1 (en) 1992-01-24 2001-12-04 Cargill, Inc. Continuous process for the manufacture of lactide and lactide polymers
US5357035A (en) * 1992-01-24 1994-10-18 Cargill, Incorporated Continuous process for manufacture of lactide polymers with purification by distillation
US6277951B1 (en) 1992-01-24 2001-08-21 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US6005067A (en) * 1992-01-24 1999-12-21 Cargill Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5585191A (en) * 1992-10-02 1996-12-17 Cargill, Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
US5536807A (en) * 1992-10-02 1996-07-16 Cargill, Incorporated Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof
US5539081A (en) * 1992-10-02 1996-07-23 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
US5525706A (en) * 1992-10-02 1996-06-11 Cargill, Incorporated Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof
US5763564A (en) * 1992-10-02 1998-06-09 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
US5773562A (en) * 1992-10-02 1998-06-30 Cargill, Incorporated Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof
US5798436A (en) * 1992-10-02 1998-08-25 Cargill, Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
US5807973A (en) * 1992-10-02 1998-09-15 Cargill, Incorporated Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof
US5981694A (en) * 1992-10-02 1999-11-09 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
US5484881A (en) * 1992-10-02 1996-01-16 Cargill, Inc. Melt-stable amorphous lactide polymer film and process for manufacturing thereof
US6005068A (en) * 1992-10-02 1999-12-21 Cargill Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
US6093791A (en) * 1992-10-02 2000-07-25 Cargill, Incorporated Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof
US6111060A (en) * 1992-10-02 2000-08-29 Cargill, Incorporated Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof
US6121410A (en) * 1992-10-02 2000-09-19 Cargill, Incorporated Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof
US6143863A (en) * 1992-10-02 2000-11-07 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
US6207792B1 (en) 1992-10-02 2001-03-27 Cargill, Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
US5475080A (en) * 1992-10-02 1995-12-12 Cargill, Incorporated Paper having a melt-stable lactide polymer coating and process for manufacture thereof
US5338822A (en) * 1992-10-02 1994-08-16 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
US6355772B1 (en) 1992-10-02 2002-03-12 Cargill, Incorporated Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof

Similar Documents

Publication Publication Date Title
DE1793559B2 (de) Verfahren zur herstellung von furan-3-carbonsaeureestern
CH492676A (de) Verfahren zur Herstellung von 1-Phenyl-2-aminoäthanol-Derivaten
DE1618479A1 (de) Verfahren zur Herstellung von Phosphorsaeureestern
DE1668366A1 (de) Verfahren zur Herstellung von Polyoxyperfluormethylenverbindungen
DE1595237A1 (de) Verfahren zur Herstellung von N-Alkylmorpholinestern von Alkenylbernsteinsaeureanhydriden
DE1280254B (de) Verfahren zur Herstellung von Phenylacetylhydroxamsaeuren
DE1568798A1 (de) Verfahren zur Herstellung cyclischer Phosphorester
DE1643087A1 (de) Verfahren zur Herstellung von Acrylsaeure
DE1670848A1 (de) Verfahren zur Herstellung von Tetrahydroisochinolinen
DE1280871B (de) Verfahren zur Herstellung von Cyclopropancarbonsaeureestern
DE1640507A1 (de) Verfahren zur Herstellung von Steckverbindern
DE1720846A1 (de) Verfahren zur Herstellung von Ahydrid-Interpolymeren
DE1668500A1 (de) Verfahren zur Herstellung von Epoxiden
DE1593740A1 (de) Verfahren zur Herstellung von Dialkyldiphenylaminen
DE1619145A1 (de) Verfahren zur Herstellung von Vliesstoffen
DE1901954A1 (de) Verfahren zur Herstellung von Polymethacrylsaeuremethylester
DE1962431A1 (de) Verfahren zur Herstellung ungesaettigter aliphatischer Carbonsaeuren
DE2112492A1 (de) Verfahren zur Herstellung von Estern
AT256791B (de) Verfahren zur Herstellung von Estern
DE1618744A1 (de) Verfahren zur Herstellung von ungesaettigten aliphatischen Saeuren
DE1645971A1 (de) Verfahren zur Herstellung von therapeutisch wertvollen (Indazol-3-yl)-oxyalkansaeuren
DE1289531B (de) Verfahren zur Herstellung von Azodiameisensaeurediestern
DE1593002A1 (de) Verfahren zur Herstellung von Dithiophosphatoalkylcarbonsaeureestern
DE1720496A1 (de) Verfahren zur Herstellung von Organopolysiloxanen
DE1668348A1 (de) Verfahren zur Herstellung von gamma-Butyrolacton