JPS5639066A - Production of amino-schiff base - Google Patents
Production of amino-schiff baseInfo
- Publication number
- JPS5639066A JPS5639066A JP11450679A JP11450679A JPS5639066A JP S5639066 A JPS5639066 A JP S5639066A JP 11450679 A JP11450679 A JP 11450679A JP 11450679 A JP11450679 A JP 11450679A JP S5639066 A JPS5639066 A JP S5639066A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- metal carbonate
- heated
- opened
- amino
- 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
- Pyrrole Compounds (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Hydrogenated Pyridines (AREA)
Abstract
PURPOSE: A lactam is heated in the presence of water and a metal carbonate to remove carbon dioxide evolved, the product is heat decomposed to produce the title compound and the metal carbonate is recycled, whereby this process forms a closed system and gives high yield with industrial advantage.
CONSTITUTION: In the presence of water and an alkali or alkaline earth metal carbonate such as lithium carbonate, a lactam of 5 or more membered ring, its oligomer, its ring-opened polymer, or its ring-opened monomer, ω-aminocarboxylic acid, is heated at 60W350°C and the carbon dioxide evolved is removed to form a metal salt of ω-aminoalkanecarboxylic acid. The product is heated at 250W550°C and dry distilled to give an amino-Schiff base of formula I (n is 4 or more) or II or its ring-opened hydrate, i.e., an α,ω-diaminoketone, and a metal carbonate, which is recycled.
USE: A raw material for α,ω-diaminoalkane, which is used for the production of high- molecular-weight compounds.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11450679A JPS6016944B2 (en) | 1979-09-06 | 1979-09-06 | Method for producing aminoschiff base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11450679A JPS6016944B2 (en) | 1979-09-06 | 1979-09-06 | Method for producing aminoschiff base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5639066A true JPS5639066A (en) | 1981-04-14 |
| JPS6016944B2 JPS6016944B2 (en) | 1985-04-30 |
Family
ID=14639453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11450679A Expired JPS6016944B2 (en) | 1979-09-06 | 1979-09-06 | Method for producing aminoschiff base |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6016944B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945577U (en) * | 1982-09-20 | 1984-03-26 | 三洋電機株式会社 | magnetic detector |
| JPH07100645A (en) * | 1993-10-07 | 1995-04-18 | Seijirou Noda | Welding joint member and welding method |
-
1979
- 1979-09-06 JP JP11450679A patent/JPS6016944B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945577U (en) * | 1982-09-20 | 1984-03-26 | 三洋電機株式会社 | magnetic detector |
| JPH07100645A (en) * | 1993-10-07 | 1995-04-18 | Seijirou Noda | Welding joint member and welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6016944B2 (en) | 1985-04-30 |
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