JPS57122078A - Preparation of macrocyclic ethylenedioate - Google Patents
Preparation of macrocyclic ethylenedioateInfo
- Publication number
- JPS57122078A JPS57122078A JP727981A JP727981A JPS57122078A JP S57122078 A JPS57122078 A JP S57122078A JP 727981 A JP727981 A JP 727981A JP 727981 A JP727981 A JP 727981A JP S57122078 A JPS57122078 A JP S57122078A
- Authority
- JP
- Japan
- Prior art keywords
- depolymerization
- ethylene glycol
- polycondensation
- aliphatic dicarboxylic
- dicarboxylic acid
- 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.)
- Granted
Links
Landscapes
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
Abstract
PURPOSE: To prepare the titled substance useful as a musk perfume, in high purity and yield, by carrying out the thermal depolymerization cyclization of a linear polyester obtained by polycondensation while adding ethylene glycol, etc. used as a component of the polyester to the depolymerization system, thereby preventing the viscosity increase of the residual polymer.
CONSTITUTION: The titled compound is prepared by the thermal depolymerization of a linear polyester obtained by the polycondensation of an aliphatic dicarboxylic acid of formula (l is 6W14; R is H or lower alkyl) or its ester, e.g. suberic acid, azelaic acid, etc. and ethylene glycol, or the above aliphatic dicarboxylic acid and ethylene oxide. In the above process, ethylene glycol and or an oligoester of the same kind as those used in the depolymerization and having average polymerization degree of 2W20 are added to the depolymerization reaction system at an arbitrary stage of the depolymerization. A known catalyst such as lead nitrate, etc. can be used as the depolymerization catalyst.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP727981A JPS57122078A (en) | 1981-01-22 | 1981-01-22 | Preparation of macrocyclic ethylenedioate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP727981A JPS57122078A (en) | 1981-01-22 | 1981-01-22 | Preparation of macrocyclic ethylenedioate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57122078A true JPS57122078A (en) | 1982-07-29 |
JPS6239157B2 JPS6239157B2 (en) | 1987-08-21 |
Family
ID=11661582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP727981A Granted JPS57122078A (en) | 1981-01-22 | 1981-01-22 | Preparation of macrocyclic ethylenedioate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57122078A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58150587A (en) * | 1982-03-03 | 1983-09-07 | Nisso Yuka Kogyo Kk | Preparation of large cyclic ester compound |
FR2530628A1 (en) * | 1982-07-20 | 1984-01-27 | Nisso Petrochemical Ind Co Ltd | Process for the production of a macrocyclic ester compound. |
WO2003002551A1 (en) * | 2001-06-27 | 2003-01-09 | Cyclics Corporation | Isolation, formulation, and shaping of macrocyclic oligoesters |
US6713601B2 (en) | 2000-09-12 | 2004-03-30 | Cyclics Corporation | Species modification in macrocyclic polyester oligomers, and compositions prepared thereby |
US6831138B2 (en) | 2002-01-07 | 2004-12-14 | Cyclics Corporation | Polymer-containing organo-metal catalysts |
EP1604987A2 (en) * | 2001-06-27 | 2005-12-14 | Cyclics Corporation | Shaping of macrocyclic oligoesters |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2936310A (en) * | 1960-05-10 | Process of preparing macrocyclic | ||
US4218379A (en) * | 1977-09-21 | 1980-08-19 | Emery Industries, Inc. | Process for the production of macrocyclic esters |
JPS55120581A (en) * | 1979-03-09 | 1980-09-17 | Mitsui Petrochem Ind Ltd | Production of macrocyclic ester |
-
1981
- 1981-01-22 JP JP727981A patent/JPS57122078A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2936310A (en) * | 1960-05-10 | Process of preparing macrocyclic | ||
US4218379A (en) * | 1977-09-21 | 1980-08-19 | Emery Industries, Inc. | Process for the production of macrocyclic esters |
JPS55120581A (en) * | 1979-03-09 | 1980-09-17 | Mitsui Petrochem Ind Ltd | Production of macrocyclic ester |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58150587A (en) * | 1982-03-03 | 1983-09-07 | Nisso Yuka Kogyo Kk | Preparation of large cyclic ester compound |
JPS6259105B2 (en) * | 1982-03-03 | 1987-12-09 | Nisso Petrochemical Ind Co Ltd | |
FR2530628A1 (en) * | 1982-07-20 | 1984-01-27 | Nisso Petrochemical Ind Co Ltd | Process for the production of a macrocyclic ester compound. |
US6713601B2 (en) | 2000-09-12 | 2004-03-30 | Cyclics Corporation | Species modification in macrocyclic polyester oligomers, and compositions prepared thereby |
WO2003002551A1 (en) * | 2001-06-27 | 2003-01-09 | Cyclics Corporation | Isolation, formulation, and shaping of macrocyclic oligoesters |
EP1604987A2 (en) * | 2001-06-27 | 2005-12-14 | Cyclics Corporation | Shaping of macrocyclic oligoesters |
EP1604987A3 (en) * | 2001-06-27 | 2006-01-04 | Cyclics Corporation | Shaping of macrocyclic oligoesters |
US7666517B2 (en) | 2001-06-27 | 2010-02-23 | Cyclics Corporation | Isolation, formulation, and shaping of macrocyclic oligoesters |
US6831138B2 (en) | 2002-01-07 | 2004-12-14 | Cyclics Corporation | Polymer-containing organo-metal catalysts |
Also Published As
Publication number | Publication date |
---|---|
JPS6239157B2 (en) | 1987-08-21 |
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