A Rapid Combinatorial Library Synthesis of Benzazolo[2,1-b]quinazolinones and Triazolo[2,1-b]quinazolinones

Abstract

Benzazolo [2,1-b]quinazolinones and triazolo[2,1-b]quinazolinones were synthesized in high yields by the condensation reaction of an aldehyde and a cyclic β-diketone with 2 - aminobenzimidazole, 2 - aminobenzothiazole or 1, 2, 4 - triazole derivatives in 1 - butyl - 3 -methylimidazolium bromide as an ionic liquid under classic heating conditions within 5-60 minutes.

Keywords

• 2-aminobenzimidazole
• 2-aminobenzothiazole
• 3-amino-1
• 2
• 4-triazole
• 3
• 5-diamino-1
• 3-amino-5-thiomethoxy-1
• ionic liquid