JPS54125654A - Preparation of amino-schiff base - Google Patents
Preparation of amino-schiff baseInfo
- Publication number
- JPS54125654A JPS54125654A JP3029678A JP3029678A JPS54125654A JP S54125654 A JPS54125654 A JP S54125654A JP 3029678 A JP3029678 A JP 3029678A JP 3029678 A JP3029678 A JP 3029678A JP S54125654 A JPS54125654 A JP S54125654A
- Authority
- JP
- Japan
- Prior art keywords
- epsilon
- lioh
- schiff base
- caprolactam
- synthesis
- 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
Abstract
PURPOSE:To obtain the title compound useful as an intermediate for the synthesis of high polymers in high yield readily in a short time, by dry distillation of epsilon-caprolactam, its ring opening polymer, or epsilon-aminocaproic acid in the presence of LiOH in a specific temperature range. CONSTITUTION:epsilon-Caprolactam, its ring opening polymer nylon 6, or epsilon-aminocaproic acid is dried up by distillation in the presence of LiOH(a strong basic decarboxylating agent) at 300-400 deg.C while distilling the reaction product amino- Schiff base. The LiOH is used in a molar amount of 1 to 2.5 times that of carbonyl groups in the raw material, and preferably monohydrate. USE:An intermediate of raw materials, e.g. alpha, omega-undecamethylenediamine, for the synthesis of high polymers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3029678A JPS54125654A (en) | 1978-03-16 | 1978-03-16 | Preparation of amino-schiff base |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3029678A JPS54125654A (en) | 1978-03-16 | 1978-03-16 | Preparation of amino-schiff base |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54125654A true JPS54125654A (en) | 1979-09-29 |
JPS642592B2 JPS642592B2 (en) | 1989-01-18 |
Family
ID=12299763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3029678A Granted JPS54125654A (en) | 1978-03-16 | 1978-03-16 | Preparation of amino-schiff base |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54125654A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4804753A (en) * | 1985-01-23 | 1989-02-14 | Bayer Aktiengesellschaft | Process for the preparation of Schiff's bases |
-
1978
- 1978-03-16 JP JP3029678A patent/JPS54125654A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4804753A (en) * | 1985-01-23 | 1989-02-14 | Bayer Aktiengesellschaft | Process for the preparation of Schiff's bases |
Also Published As
Publication number | Publication date |
---|---|
JPS642592B2 (en) | 1989-01-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060620 |
|
A313 | Final decision of rejection without a dissenting response from the applicant |
Effective date: 20061113 Free format text: JAPANESE INTERMEDIATE CODE: A313 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20061219 |