Next Article in Journal
Synthesis of 5-(4-X-Phenyl)-10,15,20-tris(Substituted Phenyl) Porphyrins Using Dipyrromethanes
Previous Article in Journal
Heteroaromatization with 4-Hydroxycoumarin Part II: Synthesis of Some New Pyrano[2,3-d]pyrimidines, [1,2,4]triazolo[1,5-c]pyrimidines and Pyrimido[1,6-b]-[1,2,4]triazine Derivatives
Article Menu

Export Article

Open AccessArticle
Molecules 2001, 6(6), 528-532; doi:10.3390/60600528

Synthesis of Bis (2,2,6,6-tetramethyl-4-piperidinyl) Maleate

College of Chemical Engineering, Zhengzhou University, Zhengzhou, 450002, P. R. China
Author to whom correspondence should be addressed.
Received: 22 August 2000 / Revised: 20 March 2001 / Accepted: 8 May 2001 / Published: 31 May 2001
View Full-Text   |   Download PDF [47 KB, uploaded 18 June 2014]


Bis (2,2,6,6-tetramethyl-4-piperidinyl) maleate is a key intermediate for the synthesis of new types of hindered amine light stabilizers (HALS), so new synthetic routes to this compound are desirable. Through an orthogonal design and follow-up single factor experiments optimal reaction conditions were determined for synthesizing bis (2,2,6,6-tetramethyl-4-piperidiny) maleate using dimethyl maleate, 2,2,6,6-tetramethyl-4-piperidinol and zeolite supported tetraisopropyl titanate as catalyst. Under the selected conditions, the reaction rate and the yield are high, the selectivity is good, the catalyst can be recycled, and there are fewer wastes. The product was characterized and quantitatively analyzed by elemental analysis, mass spectrometry, infrared spectroscopy, nuclear magnetic resonance spectroscopy and ion suppression chromatography.
Keywords: Bis (2; 2; 6; 6-tetramethyl-4-piperidinyl) maleate; molecular synthesis Bis (2; 2; 6; 6-tetramethyl-4-piperidinyl) maleate; molecular synthesis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wang, F.A.; Zhu, J.; Song, J.; Zhai, S.; Wang, L. Synthesis of Bis (2,2,6,6-tetramethyl-4-piperidinyl) Maleate. Molecules 2001, 6, 528-532.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top