ES409078A1 - Procedure for the preparation of new diperidinol esters. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the preparation of new diperidinol esters. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES409078A1 ES409078A1 ES409078A ES409078A ES409078A1 ES 409078 A1 ES409078 A1 ES 409078A1 ES 409078 A ES409078 A ES 409078A ES 409078 A ES409078 A ES 409078A ES 409078 A1 ES409078 A1 ES 409078A1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- see formula
- translation
- carbon atoms
- preparation
- 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.)
- Expired
Links
Landscapes
- Hydrogenated Pyridines (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Process for the preparation of new esters of piperidinols, and in particular new esters of p-hydroxyaryl substituted alkyl or 2,2-dimethylpiperidin-4-ol substituted p-hydroxyaralkyl, suitable as stabilizers for polymers and especially for propylene, of the general formula I **(See formula)** where A is - (see formula), and R1 and R2 are the same or different and each is a straight or branched chain alkyl group having 1 to 6 carbon atoms, or 1-methylcyclohexyl, or alpha, alpha-dimethylbenzyl, and R3 and R4 are the same or different and each is an alkyl group with 1 to 12 carbon atoms, or R3 and R4 together with the carbon atom to which they are attached form a saturated alicyclic radical with 5 to 8 carbon atoms, or the formula group **(See formula)** and n is 0 or 1, characterized by reacting a piperidinol of formula IV **(See formula)** with an acid halide of formula V **(See formula)** where R1, R2, A and n have the meaning already expressed above, and Y is halogen, preferably chlorine; the reaction of which takes place in the presence of a halogenic acid binding agent, such as triethylamine, or, optionally, an excess of the reacting amine. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES409078A ES409078A1 (en) | 1972-11-29 | 1972-11-29 | Procedure for the preparation of new diperidinol esters. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES409078A ES409078A1 (en) | 1972-11-29 | 1972-11-29 | Procedure for the preparation of new diperidinol esters. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES409078A1 true ES409078A1 (en) | 1976-06-01 |
Family
ID=8462771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES409078A Expired ES409078A1 (en) | 1972-11-29 | 1972-11-29 | Procedure for the preparation of new diperidinol esters. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES409078A1 (en) |
-
1972
- 1972-11-29 ES ES409078A patent/ES409078A1/en not_active Expired
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