title: Convenient ultrasound mediated synthesis of substituted pyrazolones under solvent-free conditions.
abstract: Smooth condensation of hydrazine derivatives with various beta-keto esters was performed under solvent-free conditions by using ultrasound irradiation to facilitate the formation of pyrazolone derivatives in good to excellent amounts within very short time periods.
authors.affiliation: Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran. mojtahedi@ccerci.ac.ir
authors.forename: Mohammad M
authors.initials: MM
authors.lastname: Mojtahedi
authors.forename: Mashal
authors.initials: M
authors.lastname: Javadpour
authors.forename: M Saeed
authors.initials: MS
authors.lastname: Abaee