ABSTRACT Pyrazolines have been reported to possess many of interesting biological activities such as antimicrobial, antidepressant, antitumor, antioxidant, anti-inflammatory, anticancer and anticonvulsant. Two of analog pyrazolines 1-phenyl- 3-(1-naphthyl)-5-(3-chlorophenyl)-2-pyrazoline (AR1) and 1-phenyl- 3-(2-naphthyl)-5-(3-chlorophenyl)-2-pyrazoline (AR2) were synthesized by cyclizati…