AF Al-burgus,
AF Ali, OY Al-abbasy - Chimica Techno Acta. 2024. Vol. 11 …, 2024 - elar.urfu.ru
Coumarin derivatives were synthesized herein from 3-acetyl coumarin and 4-(pyrimidin-2-
yldiazenyl) antipyrine, leading to the azo chalcone intermediate compound. The final spiro …