Synthesis of Substituted Pyrimidinones Catalyzed by Boric Acid and Glycerol in Aqueous Medium
摘要:
An expeditious one-pot synthesis of substituted pyrimidinone derivatives with aromatic aldehydes, cyclopentanone, and urea (or thiourea) was developed with boric acid (10 mol%) and glycerol (0.1 mL) in aqueous medium at 45-50 degrees C. The methodology is simple, highly efficient, and high yielding. The idea behind this methodology is that boric acid, being a weak acid, behaves as a strong acid in presence of glycerol in aqueous medium.