Ultrasound-assisted synthesis of dihydropyrimidine-2-thiones | Zendy

Javad SafaeiGhomi | Zendy; Mohammad Ali Ghasemzadeh | Zendy

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Ultrasound-assisted synthesis of dihydropyrimidine-2-thiones

Author(s) -

Javad SafaeiGhomi,

Mohammad Ali Ghasemzadeh

Publication year - 2011

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc100212057s

Subject(s) - thiourea , acetophenone , chalcone , sonication , chemistry , pyrimidine , ethanol , condensation , ultrasonic sensor , ultrasound , aldehyde , organic chemistry , combinatorial chemistry , nuclear chemistry , chromatography , catalysis , stereochemistry , physics , acoustics , thermodynamics

Chalcone derivatives were prepared by the condensation of various substituted aryl aldehydes and acetophenone in alkaline ethanol, while pyrimi- dine-2-thione derivatives were prepared by the combination of chalcones and thiourea under conventional and ultrasonic conditions. Advantages of the ultra- sound effect were observed and high yields of the products were obtained after 20-30 min sonication. Characterization and structural elucidation of the pro- ducts was realized based on chemical, analytical and spectral analyses. The re- sults clearly demonstrated a high efficiency of the ultrasonic systems was achieved in the chemical processes.

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