Aseih Kargar - Department of Chemistry, Payame Noor University (PNU), P. O. Box ۱۹۳۹۵-۳۶۹۷, Tehran, Iran.
Seyed Sajad Sajadikhah - Department of Chemistry, Payame Noor University, P. O. Box ۱۹۳۹۵-۳۶۹۷, Tehran, Iran
Abdolkarim Zare - Department of Chemistry, Payame Noor University, PO BOX ۱۹۳۹۵-۳۶۹۷, Tehran, Iran

Triethylaminium-N-sulfonic acid tetrachloroaluminate (TSAT) as a new ionic liquid was synthesized and characterized by its FT-IR, ۱H, ۱۳C NMR and mass spectra as well as TG and DTG diagrams. This ionic liquid was employed as a catalyst for the synthesis of [۱,۲,۴]triazolo[۱,۵-a]pyrimidines-۶-carboxamides via one-pot three-component reaction of aromatic aldehydes, acetoacetanilide and ۳-amino-۱,۲,۴-triazole under solvent-free conditions at ۶۰ °C .The salient features of the present protocol are mild reaction condition, easy isolation of products and clean reaction profiles.

Ionic Liquid, Triethylaminium-N-sulfonic acid tetrachloroaluminate (TSAT), [۱, ۴]Triazolo[۱, ۵-a] pyrimidines-۶-carboxamide, Acetoacetanilide, ۳-Amino-۱, ۲, ۴-triazole