JPS54115390A - Preparation of large ring ethylenedioate - Google Patents
Preparation of large ring ethylenedioateInfo
- Publication number
- JPS54115390A JPS54115390A JP2202378A JP2202378A JPS54115390A JP S54115390 A JPS54115390 A JP S54115390A JP 2202378 A JP2202378 A JP 2202378A JP 2202378 A JP2202378 A JP 2202378A JP S54115390 A JPS54115390 A JP S54115390A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum compound
- ethylenedioate
- large ring
- give
- fatty 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.)
- Pending
Links
Landscapes
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Catalysts (AREA)
Abstract
PURPOSE: To obtain the title compound useful as musk perfumes, in a simple process in high yield, by polymerizing a dibasic fatty acid with ethylene glycol in the presence of an aluminum compound having a carbonate radical, and by depolymeirzing and ring closure of the polymer in vacuo.
CONSTITUTION: A basic aqueous solution of an aluminum compound, e.g. Al(OH)3, is brought into contact with CO2 gas or a substance which produces CO2 gas, to give an aluminum compound having a carbonate radical. A dibasic fatty acid of formula I: (n is an integer 6W14) or its ester is polymerized with ethylene glycol or ethylene oxide in the presence of the aluminum compound thus obtained at 50W250°C, preferably 100W200°C, and subjected to depolymerization and ring closure at 180W300°C, preferably 240W280°C, at a pressure of 10-2W 10 mm Hg, preferably 10-1Wl mm Hg, to give a large ring ethylenedioate of formula II.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2202378A JPS54115390A (en) | 1978-03-01 | 1978-03-01 | Preparation of large ring ethylenedioate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2202378A JPS54115390A (en) | 1978-03-01 | 1978-03-01 | Preparation of large ring ethylenedioate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54115390A true JPS54115390A (en) | 1979-09-07 |
Family
ID=12071376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2202378A Pending JPS54115390A (en) | 1978-03-01 | 1978-03-01 | Preparation of large ring ethylenedioate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54115390A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4594434A (en) * | 1982-08-02 | 1986-06-10 | National Distillers And Chemical Corporation | Process for the depolymerization of polyesters using dawsonite as the catalyst |
CN1059903C (en) * | 1993-10-25 | 2000-12-27 | 朱守一 | Macrocyclic musk dilactone compound and its processing method |
-
1978
- 1978-03-01 JP JP2202378A patent/JPS54115390A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4594434A (en) * | 1982-08-02 | 1986-06-10 | National Distillers And Chemical Corporation | Process for the depolymerization of polyesters using dawsonite as the catalyst |
CN1059903C (en) * | 1993-10-25 | 2000-12-27 | 朱守一 | Macrocyclic musk dilactone compound and its processing method |
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