RO92779B1 - Process for the preparation of bis-piperidine esters - Google Patents

Process for the preparation of bis-piperidine esters

Info

Publication number
RO92779B1
RO92779B1 RO121205A RO12120585A RO92779B1 RO 92779 B1 RO92779 B1 RO 92779B1 RO 121205 A RO121205 A RO 121205A RO 12120585 A RO12120585 A RO 12120585A RO 92779 B1 RO92779 B1 RO 92779B1
Authority
RO
Romania
Prior art keywords
bis
preparation
piperidine
piperidine esters
esters
Prior art date
Application number
RO121205A
Other languages
Romanian (ro)
Other versions
RO92779A2 (en
Inventor
Ileana Dragutan
Constantin Andrei
Valeriu Dragutan
Didina Nistor
Original Assignee
Institutul De Cercetari Chimice
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Institutul De Cercetari Chimice filed Critical Institutul De Cercetari Chimice
Priority to RO121205A priority Critical patent/RO92779B1/en
Publication of RO92779A2 publication Critical patent/RO92779A2/en
Publication of RO92779B1 publication Critical patent/RO92779B1/en

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Abstract

Inventia se refera la un procedeu de preparare a unor esteri bis-piperidinici, utilizati ca stabilizatori pentru polimeri din clasa aminelor împiedicate steric, prin reactia de transesterificare a esterilor metilici al unor acizi dicarboxilici corespunzatori cu 2,2,6,6-tetrametil-4-piperidinol, în prezenta de catalizator si solvent.The invention relates to a process for the preparation of bis-piperidine esters used as stabilizers for sterically hindered amine-grade polymers by the transesterification reaction of the methyl esters of the corresponding dicarboxylic acids with 2,2,6,6-tetramethyl-4 -piperidinol, in the presence of catalyst and solvent.

RO121205A 1985-12-19 1985-12-19 Process for the preparation of bis-piperidine esters RO92779B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO121205A RO92779B1 (en) 1985-12-19 1985-12-19 Process for the preparation of bis-piperidine esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO121205A RO92779B1 (en) 1985-12-19 1985-12-19 Process for the preparation of bis-piperidine esters

Publications (2)

Publication Number Publication Date
RO92779A2 RO92779A2 (en) 1987-10-30
RO92779B1 true RO92779B1 (en) 1987-10-31

Family

ID=20118506

Family Applications (1)

Application Number Title Priority Date Filing Date
RO121205A RO92779B1 (en) 1985-12-19 1985-12-19 Process for the preparation of bis-piperidine esters

Country Status (1)

Country Link
RO (1) RO92779B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105801561A (en) * 2016-04-15 2016-07-27 佛山市聚成生化技术研发有限公司 Novel hindered amine light stabilizer and synthesis method thereof
CN105712981B (en) * 2016-04-15 2018-06-19 双键化工（泰兴）有限公司 A kind of hindered amine light stabilizer and its synthetic method
CN114230511B (en) * 2021-12-31 2024-01-26 利安隆凯亚(河北)新材料有限公司 Preparation method of bis (2, 6-tetramethyl-4-piperidinyl) sebacate

Also Published As

Publication number Publication date
RO92779A2 (en) 1987-10-30

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