title: Synthesis of quinolone substituted pyrazoles, isoxazoles and pyridines as a potential blue luminophors.
abstract: Series of quinolone C(3)-substituted pyrazolines, isoxazolines, pyridines and pyrimidines were synthesized in good yields by the cyclocondensation reactions of 1, 2-unsaturated ketones and hydrazines, hydroxylamine hydrochloride and dimedone respectively. The quinolone derivatives (3, 5 and 7) were synthesized and further studied for their photophysical properties. High absorption and quantum yield are found for N(1)-phenyl and C(3,4)-dimethoxy substituents on phenyl ring (3h). Energy optimization by PM6 methods showed high stability required for selection of suitable candidates to be use as future blue emitters.
authors.affiliation: Organic Chemistry Research Center, Department of Chemistry, K. T. H. M. College, Gangapur Road, Nashik, 422 002, MS, India. raghunath_toche@rediffmail.com
authors.forename: Raghunath B
authors.initials: RB
authors.lastname: Toche
authors.forename: Muddassar A
authors.initials: MA
authors.lastname: Kazi
authors.forename: Shivaraj P
authors.initials: SP
authors.lastname: Patil
authors.forename: Shrikant B
authors.initials: SB
authors.lastname: Kanawade
authors.forename: Madhukar N
authors.initials: MN
authors.lastname: Jachak