title: Synthesis of azoloquinazolinic systems using ultrasound.
abstract: A number of azoloquinazolines has been efficiently synthesized in the cyclocondensation reaction of azoloazines with α,β-unsaturated carbonyl compounds activated with ultrasound. Two main advantages of the suggested procedure are shorter reaction time and higher yields compared to reflux and stirring at room temperatures. In addition, the yields of dehydrogenization products were decreased.
authors.affiliation: V.N. Karazin Kharkov National University, Organic Chemistry Department, Svobody sq. 4, 61077 Kharkov, Ukraine. dmitriy.yu.sidorenko@univer.kharkov.ua
authors.forename: D Yu
authors.initials: DY
authors.lastname: Sidorenko
authors.forename: V D
authors.initials: VD
authors.lastname: Orlov
mesh_terms: D003500:Cyclization; D006575:Heterocyclic Compounds, 3-Ring / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D011799:Quinazolines / Q000138:chemical synthesis* / Q000737:chemistry; D013237:Stereoisomerism; D014465:Ultrasonics
chemical_list: D006575:Heterocyclic Compounds, 3-Ring; D011799:Quinazolines