DE3789274D1 - Verfahren zur Herstellung von zyklischen Estern hoher Reinheit. - Google Patents
Verfahren zur Herstellung von zyklischen Estern hoher Reinheit.Info
- Publication number
- DE3789274D1 DE3789274D1 DE87309416T DE3789274T DE3789274D1 DE 3789274 D1 DE3789274 D1 DE 3789274D1 DE 87309416 T DE87309416 T DE 87309416T DE 3789274 T DE3789274 T DE 3789274T DE 3789274 D1 DE3789274 D1 DE 3789274D1
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- high purity
- cyclic esters
- esters
- cyclic
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D309/10—Oxygen atoms
- C07D309/12—Oxygen atoms only hydrogen atoms and one oxygen atom directly attached to ring carbon atoms, e.g. tetrahydropyranyl ethers
-
- 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)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyethers (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Materials For Medical Uses (AREA)
- Medicinal Preparation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/925,484 US4727163A (en) | 1985-07-11 | 1986-10-29 | Process for preparing highly pure cyclic esters |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3789274D1 true DE3789274D1 (de) | 1994-04-14 |
Family
ID=25451798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE87309416T Expired - Lifetime DE3789274D1 (de) | 1986-10-29 | 1987-10-26 | Verfahren zur Herstellung von zyklischen Estern hoher Reinheit. |
Country Status (17)
Country | Link |
---|---|
US (1) | US4727163A (de) |
EP (1) | EP0266143B1 (de) |
JP (1) | JPS63152375A (de) |
KR (1) | KR880005116A (de) |
CN (1) | CN1015986B (de) |
AR (1) | AR243879A1 (de) |
AT (1) | ATE102617T1 (de) |
AU (1) | AU591432B2 (de) |
BR (1) | BR8705758A (de) |
CA (1) | CA1277672C (de) |
DD (1) | DD264695A1 (de) |
DE (1) | DE3789274D1 (de) |
IE (1) | IE872885L (de) |
IL (1) | IL84303A (de) |
MX (1) | MX165197B (de) |
PT (1) | PT86017B (de) |
ZA (1) | ZA878121B (de) |
Families Citing this family (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0264926B1 (de) * | 1986-10-24 | 1992-04-08 | Boehringer Ingelheim Kg | Verfahren zur Herstellung und Reinigung thermolabiler Verbindungen |
EP0275581B1 (de) * | 1986-12-19 | 1992-08-12 | Akzo N.V. | Herstellung von Polymilchsäure und Copolymeren daraus |
US4835293A (en) * | 1987-02-24 | 1989-05-30 | E. I. Du Pont De Nemours And Company | Atmospheric pressure process for preparing pure cyclic esters |
US5214159A (en) * | 1987-06-16 | 1993-05-25 | Boehringer Ingelheim Gmbh | Meso-lactide |
US5091544A (en) * | 1990-05-08 | 1992-02-25 | E. I. Du Pont De Nemours And Company | Process for rapid conversion of oligomers to cyclic esters |
US5023349A (en) * | 1990-05-08 | 1991-06-11 | E. I. Du Pont De Nemours And Company | Continuous process for rapid conversion of oligomers to cyclic esters |
EP0531458B1 (de) * | 1990-05-03 | 1997-08-13 | E.I. Du Pont De Nemours And Company | Verfahren zur schnellen herstellung cyclischer ester |
US5138074A (en) * | 1990-06-28 | 1992-08-11 | E. I. Du Pont De Nemours And Company | Continuous catalyzed vapor phase dimeric cyclic ester process |
EP0591188A1 (de) * | 1990-07-13 | 1994-04-13 | E.I. Du Pont De Nemours And Company | Rezyklierungsverfahren mit hoher lactid-ausbeute |
US5076983A (en) * | 1990-07-16 | 1991-12-31 | E. I. Du Pont De Nemours And Company | Polyhydroxy acid films |
US5332839A (en) * | 1990-09-18 | 1994-07-26 | Biopak Technology, Ltd. | Catalytic production of lactide directly from lactic acid |
US5266706A (en) * | 1990-10-23 | 1993-11-30 | E. I. Du Pont De Nemours & Company | Solvent scrubbing recovery of lactide and other dimeric cyclic esters |
US5117008A (en) * | 1990-10-23 | 1992-05-26 | E. I. Du Pont De Nemours And Company | Solvent scrubbing recovery of lactide and other dimeric cyclic esters |
US5089632A (en) * | 1991-01-30 | 1992-02-18 | E. I. Du Pont De Nemours And Company | Process for preparing cyclic esters using a fluorocarbon |
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 |
US5196551A (en) * | 1991-06-24 | 1993-03-23 | E. I. Du Pont De Nemours And Company | Co-vaporization process for preparing lactide |
US5264617A (en) * | 1991-11-22 | 1993-11-23 | E. I. Du Pont De Nemours And Company | Preparation of alkyl esters by depolymerization |
US5264614A (en) * | 1991-11-22 | 1993-11-23 | E. I. Du Pont De Nemours And Company | Recovery of polyhydroxy acids |
US5229528A (en) * | 1991-11-22 | 1993-07-20 | E. I. Du Pont De Nemours And Company | Rapid depolymerization of polyhydroxy acids |
US5268507A (en) * | 1991-11-22 | 1993-12-07 | E. I. Du Pont De Nemours And Company | Preparation of amide derivatives of hydroxy acids |
US5264626A (en) * | 1991-11-22 | 1993-11-23 | E. I. Du Pont De Nemours And Company | Rapid depolymerization of polyhydroxy acids |
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 |
US6005067A (en) * | 1992-01-24 | 1999-12-21 | Cargill Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
US6326458B1 (en) | 1992-01-24 | 2001-12-04 | Cargill, Inc. | Continuous process for the manufacture of lactide and lactide polymers |
US5247059A (en) * | 1992-01-24 | 1993-09-21 | Cargill, Incorporated | Continuous process for the manufacture of a purified lactide from esters of lactic acid |
US5142023A (en) * | 1992-01-24 | 1992-08-25 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
US5675021A (en) * | 1992-03-19 | 1997-10-07 | Chronopol, Inc. | Method to produce and purify cyclic esters |
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 |
US5278256A (en) * | 1992-09-16 | 1994-01-11 | E. I. Du Pont De Nemours And Company | Rapidly degradable poly (hydroxyacid) compositions |
ATE173520T1 (de) * | 1992-10-02 | 1998-12-15 | Cargill Inc | Papier mit einer beschichtung aus schmelzstabilem polymer und dessen verfahren zur herstellung |
US5338822A (en) * | 1992-10-02 | 1994-08-16 | Cargill, Incorporated | Melt-stable lactide polymer composition and process for manufacture thereof |
US6005068A (en) | 1992-10-02 | 1999-12-21 | Cargill Incorporated | Melt-stable amorphous lactide polymer film and process for manufacture thereof |
CA2124842C (en) * | 1992-10-02 | 2003-07-15 | Patrick R. Gruber | A melt-stable lactide polymer fabric and process for manufacture thereof |
US5342969A (en) * | 1993-03-03 | 1994-08-30 | E. I. Du Pont De Nemours And Company | Recovery of hydroxycarboxylic acid values from poly(hydroxycarboxylic acids) |
ATE212062T1 (de) | 1996-02-08 | 2002-02-15 | Oekologische Technologie Und S | Verfahren zur herstellung von organischen aminiumlactaten und deren verwendung zur herstellung von dilactid |
US5830991A (en) * | 1996-02-09 | 1998-11-03 | Kureha Kagaku Kagyo Kk | Preparation process and purification process of dimeric cyclic ester of hydroxycarboxylic acid |
JP4565208B2 (ja) | 2000-03-31 | 2010-10-20 | 株式会社クレハ | グリコリドの精製方法 |
DE60125045T2 (de) * | 2000-08-11 | 2007-07-05 | Kureha Corporation | Verfahren zur Herstellung eines cyclischen Esters durch Depolymerisation eines aliphatischen Polyesters und Verfahren zur Reinigung eines rohen cyclischen Esters |
KR100851267B1 (ko) * | 2001-03-06 | 2008-08-08 | 가부시끼가이샤 구레하 | 글리콜리드 제조 방법 및 글리콜산 조성물 |
EP1377566B1 (de) * | 2001-04-12 | 2004-09-22 | Kureha Chemical Industry Co., Ltd. | Glycolide erzeugungsverfahren, und glycolsäure oligomer für glycolide erzeugung |
WO2006129736A1 (ja) * | 2005-06-01 | 2006-12-07 | Mitsui Chemicals, Inc. | 環状エステルの製造方法 |
JP6150522B2 (ja) * | 2009-12-21 | 2017-06-21 | エボニック コーポレイションEvonik Corporation | 不飽和官能基を含む環状エステルを調製するための方法及びこれから調製されるポリエステル |
US20120245322A1 (en) | 2011-03-25 | 2012-09-27 | Hyundai Motor Company | Manufacturing lactide from lactic acid |
US20120245321A1 (en) | 2011-03-25 | 2012-09-27 | Hyundai Motor Company | Manufacturing lactide from lactic acid |
KR101326521B1 (ko) | 2011-05-26 | 2013-11-07 | 현대자동차주식회사 | 유산으로부터 락타이드의 제조 방법 |
AU2013216832B2 (en) | 2012-02-09 | 2016-09-22 | Novus International Inc. | Heteroatom containing cyclic dimers |
BR112015000494A2 (pt) | 2012-07-12 | 2017-06-27 | Novus Int Inc | matriz e composições da camada para a proteção dos biotivos |
US9365536B2 (en) | 2012-11-22 | 2016-06-14 | Kureha Corporation | Method for producing glycolide, which is provided with rectification step by means of gas-liquid countercurrent contact, and method for purifying crude glycolide |
US10584306B2 (en) | 2017-08-11 | 2020-03-10 | Board Of Regents Of The University Of Oklahoma | Surfactant microemulsions |
RU2660652C1 (ru) * | 2017-12-29 | 2018-07-09 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский государственный университет" (ТГУ, НИ ТГУ) | Способ получения гликолида из модифицированных олигомеров гликолевой кислоты |
CN109970702B (zh) * | 2019-03-28 | 2020-06-26 | 杭州华惟生物医药有限公司 | 一种高纯度医用乙交酯的工业化生产方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2163268A (en) * | 1933-12-12 | 1939-06-20 | Du Pont | Method for making cyclic esters |
US2163109A (en) * | 1936-04-03 | 1939-06-20 | Du Pont | Chemical process and products therefrom |
US2668162A (en) * | 1952-03-20 | 1954-02-02 | Du Pont | Preparation of high molecular weight polyhydroxyacetic ester |
FR1485302A (fr) * | 1966-07-01 | 1967-06-16 | Wolfen Filmfab Veb | Procédé pour l'obtention d'esters-anhydrides cycliques d'acides alpha-hydroxy-carboxyliques |
US3442871A (en) * | 1966-05-04 | 1969-05-06 | American Cyanamid Co | Process for polymerizing a glycolide |
GB1108720A (en) * | 1966-10-10 | 1968-04-03 | Wolfen Filmfab Veb | Process for the manufacture of cyclic ester anhydrides of ª-hydroxy-carboxylic acids |
US3457280A (en) * | 1967-06-12 | 1969-07-22 | American Cyanamid Co | Alpha-glycolide and methods for the isolation thereof |
US3435008A (en) * | 1967-08-22 | 1969-03-25 | American Cyanamid Co | Method for preparation of isomerically pure beta-glycolide and polymerization method for glycolide compositions employing partial hydrolyzate of said beta-glycolide |
US3597350A (en) * | 1968-11-12 | 1971-08-03 | Pharmacia Fine Chemicals Ab | Gel filtration process |
US3763190A (en) * | 1972-04-19 | 1973-10-02 | Stanford Research Inst | Preparation of pure glycolide |
-
1986
- 1986-10-29 US US06/925,484 patent/US4727163A/en not_active Expired - Fee Related
-
1987
- 1987-10-22 CA CA000549976A patent/CA1277672C/en not_active Expired - Lifetime
- 1987-10-26 DE DE87309416T patent/DE3789274D1/de not_active Expired - Lifetime
- 1987-10-26 EP EP87309416A patent/EP0266143B1/de not_active Expired - Lifetime
- 1987-10-26 AT AT87309416T patent/ATE102617T1/de not_active IP Right Cessation
- 1987-10-28 KR KR870011957A patent/KR880005116A/ko not_active Application Discontinuation
- 1987-10-28 MX MX9002A patent/MX165197B/es unknown
- 1987-10-28 DD DD87308357A patent/DD264695A1/de not_active IP Right Cessation
- 1987-10-28 AR AR87309150A patent/AR243879A1/es active
- 1987-10-28 BR BR8705758A patent/BR8705758A/pt unknown
- 1987-10-28 AU AU80417/87A patent/AU591432B2/en not_active Ceased
- 1987-10-28 IL IL84303A patent/IL84303A/xx not_active IP Right Cessation
- 1987-10-28 IE IE872885A patent/IE872885L/xx unknown
- 1987-10-28 PT PT86017A patent/PT86017B/pt not_active IP Right Cessation
- 1987-10-28 JP JP62272900A patent/JPS63152375A/ja active Pending
- 1987-10-28 CN CN87107549A patent/CN1015986B/zh not_active Expired
- 1987-10-29 ZA ZA878121A patent/ZA878121B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CA1277672C (en) | 1990-12-11 |
IL84303A (en) | 1993-01-14 |
AU8041787A (en) | 1988-05-05 |
PT86017B (pt) | 1990-07-31 |
CN87107549A (zh) | 1988-05-11 |
DD264695A1 (de) | 1989-02-08 |
IL84303A0 (en) | 1988-03-31 |
AU591432B2 (en) | 1989-11-30 |
CN1015986B (zh) | 1992-03-25 |
MX165197B (es) | 1992-10-30 |
KR880005116A (ko) | 1988-06-28 |
IE872885L (en) | 1988-04-29 |
EP0266143A3 (en) | 1990-03-07 |
AR243879A1 (es) | 1993-09-30 |
ZA878121B (en) | 1989-07-26 |
PT86017A (en) | 1987-11-01 |
JPS63152375A (ja) | 1988-06-24 |
EP0266143B1 (de) | 1994-03-09 |
ATE102617T1 (de) | 1994-03-15 |
US4727163A (en) | 1988-02-23 |
EP0266143A2 (de) | 1988-05-04 |
BR8705758A (pt) | 1988-05-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE102617T1 (de) | Verfahren zur herstellung von zyklischen estern hoher reinheit. | |
DE3789435T2 (de) | Verfahren zur Herstellung von Eicosapentaensäure. | |
DE3774197D1 (de) | Verfahren zur herstellung von rindlaktoferrin in hoher reinheit. | |
DE3769115D1 (de) | Verfahren zur herstellung von estern. | |
DE58906574D1 (de) | Verfahren zur Herstellung von cyclischen Kohlensäureestern. | |
ATE66678T1 (de) | Verfahren zur herstellung von makrolidderivaten. | |
DE3752086D1 (de) | Verfahren zur Herstellung von optisch-aktiven Cyclopropancarbonsäure | |
DE69009237T2 (de) | Verfahren zur Herstellung von optisch aktiven Estern der 6-t-Butoxy-3,5-dihydroxyhexansäure. | |
DE58907182D1 (de) | Verfahren zur Herstellung von 6-Aminocapronsäureestern. | |
DE3789680T2 (de) | Verfahren zur Herstellung von Halbleiterbauelementen. | |
DE3879049T2 (de) | Verfahren zur Herstellung von Penizillan-Säurederivaten. | |
DE3772341D1 (de) | Verfahren zur herstellung von carbonsaeuren. | |
DE68923312D1 (de) | Verfahren zur Herstellung von Caprolactam mit hoher Reinheit. | |
DE3750353T2 (de) | Verfahren zur Herstellung von Celluloseesterfolien. | |
DE3768148D1 (de) | Verfahren zur herstellung von carbonsaeuren. | |
DE3855357D1 (de) | Verfahren zur Herstellung von supraleitenden Keramiken | |
DE3768510D1 (de) | Verfahren zur herstellung von estern. | |
DE58909208D1 (de) | Verfahren zur Herstellung von Imidazol-2-carbonsäuren. | |
DE3889371T2 (de) | Verfahren zur Herstellung von supraleitenden Keramiken. | |
DE69304634D1 (de) | Verfahren zur Herstellung von N,O-Dialkylhydroxycarbaminsäureestern | |
DE69002867D1 (de) | Verfahren zur Herstellung hochreiner o-Toluolsäure. | |
DE69107740T2 (de) | Verfahren zur Herstellung von (Cyanofluormethyl)-Phosphonsäureestern. | |
DE68912856T2 (de) | Verfahren zur Herstellung von Carbamidsäureestern. | |
DE68927132T2 (de) | Verfahren zur Herstellung von Lactonen | |
DE58907865D1 (de) | Verfahren zur Herstellung von alpha-Ketocarbonsäureestern. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |