New 3-aroyl-4-(3-chromonyl)-2-pyrazolines have been synthesized by the reaction of 3-(3-aryl-3-oxopropenyl)chromen-4-ones and diazomethane. Some of these 2-pyrazolines have also been N-acylated with a mixture of anhydrous pyridine and acetic anhydride or propionic anhydride. Structures of all new compounds have been elucidated by elemental analyses, mass spectrometry, ir and nmr spectroscopic measurements.
ASJC Scopus subject areas
- Organic Chemistry