JPS5459287A - Preparation of 2,2,6,6-tetramethylpiperidne derivative - Google Patents
Preparation of 2,2,6,6-tetramethylpiperidne derivativeInfo
- Publication number
- JPS5459287A JPS5459287A JP7473378A JP7473378A JPS5459287A JP S5459287 A JPS5459287 A JP S5459287A JP 7473378 A JP7473378 A JP 7473378A JP 7473378 A JP7473378 A JP 7473378A JP S5459287 A JPS5459287 A JP S5459287A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- derivative
- alkyl
- preparation
- reaction
- 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
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
NEW MATERIAL:2,2,6,6-Tetramethylpiperidine derivatives of formula I [R1 is H, alkyl, substed. alkyl, alkenyl; A is formula II (R2 is H, lower alkyl) or formula III].
EXAMPLE: 9-Aza-3-hydroxymethyl-3,8,8,10,10-pentamethyl-1,5-dioxaspiro[5,5] undecane.
USE: Stabilizers for synthetic high-molecular-weight materials and their synthetic intermediates, especially resistant to light and heat.
PREPARATION: The reaction between a triacetoneamine derivative of formula IV and a compound of formula V is conducted under reflux in the presence of an acidic catalyst such as benzenesulfonic acid or p-toluenesulfonic acid to prepare a compound of formula I. The reaction is preferably effected in a solvent; however, may be conducted in the absence of solvents
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7473378A JPS5459287A (en) | 1978-06-20 | 1978-06-20 | Preparation of 2,2,6,6-tetramethylpiperidne derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7473378A JPS5459287A (en) | 1978-06-20 | 1978-06-20 | Preparation of 2,2,6,6-tetramethylpiperidne derivative |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10740872A Division JPS5420977B2 (en) | 1972-10-26 | 1972-10-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5459287A true JPS5459287A (en) | 1979-05-12 |
JPS5544073B2 JPS5544073B2 (en) | 1980-11-10 |
Family
ID=13555719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7473378A Granted JPS5459287A (en) | 1978-06-20 | 1978-06-20 | Preparation of 2,2,6,6-tetramethylpiperidne derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5459287A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62116584A (en) * | 1985-10-11 | 1987-05-28 | アイシ−アイ・アメリカス・インコ−ポレ−テツド | Light stabilizer for plastics based on malonic ester |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4953570A (en) * | 1972-09-29 | 1974-05-24 |
-
1978
- 1978-06-20 JP JP7473378A patent/JPS5459287A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4953570A (en) * | 1972-09-29 | 1974-05-24 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62116584A (en) * | 1985-10-11 | 1987-05-28 | アイシ−アイ・アメリカス・インコ−ポレ−テツド | Light stabilizer for plastics based on malonic ester |
Also Published As
Publication number | Publication date |
---|---|
JPS5544073B2 (en) | 1980-11-10 |
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