Title:Green Synthesis of Benzoimidazopyrimidine, Benzimidazoloquinazolinone,
Triazolopyrimidine and Triazoloquinazolinone Derivatives Catalyzed by
Oxalic Acid Dihydrate
Volume: 19
Issue: 3
Author(s): Seyed Sajad Sajadikhah*Bagher Liravi-Deylami
Affiliation:
- Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-3697, Tehran, Iran
Keywords:
Benzoimidazopyrimidine, benzimidazoloquinazolinone, triazolopyrimidine, triazoloquinazolinone, oxalic acid dehydrate, green chemistry, multi-component reacrion.
Abstract: Benzoimidazopyrimidine, benzimidazoloquinazolinone, triazolopyrimidine, and triazoloquinazolinone
derivatives were synthesized via a one-pot multi-component reaction in the presence of
a catalytic amount of oxalic acid dihydrate. The reactions were performed in the mixture of EtOH:H2O
or under solvent-free conditions as green media. The advantageous features of these methodologies are
inexpensive starting materials and catalyst, high atom economy and good yields, and metal-free synthesis.
Moreover, all the products were obtained by simple filtration, and no need for column chromatography
or tedious separation procedures, which is very important in terms of reducing environmental
pollutions.