We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Design, synthesis, characterization, and physical property determination of a new ionic liquid: the preparation of triazolo-pyrimidines at room temperature under metal-free conditions.
- Authors
Shahnavaz, Zohreh; Khaligh, Nader Ghaffari; Mihankhah, Taraneh; Johan, Mohd Rafie
- Abstract
A new ionic liquid is synthesized, and its chemical structure is characterized by FTIR, 1D NMR and 2D NMR, and mass analyses. The thermal behavior and thermal stability of this ionic liquid are investigated. The results approved the formation of 4,4ʹ-trimethylene-N,Nʹ-dipiperidinium sulfate instead of 4,4ʹ-trimethylene-N,Nʹ-dipiperidinium hydrogen sulfate. Moreover, the synthesis of triazolo-pyrimidine derivatives was successfully conducted in the presence of new ionic liquid at room temperature under metal-free conditions, which demonstrated the catalytic efficiency of this ionic liquid. The workup was carried out without the utilization of high-cost column chromatography. After extraction of desired products, the residual ionic liquid could be recycled and reused in the next runs. New ionic liquid exhibited high catalytic activity even after fifth run with no significant change in the chemical structure.
- Subjects
IONIC liquids; PYRIMIDINES; SULFURIC acid; COLUMN chromatography
- Publication
Research on Chemical Intermediates, 2020, Vol 46, Issue 10, p4645
- ISSN
0922-6168
- Publication type
Article
- DOI
10.1007/s11164-020-04226-4