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Globally, the occurrence of skin cancers has been increasing day by day due to unprotected skin and exposure to UV radiation. This research is focused toward the evaluation of the antioxidant potential of an OH-free flavanone derivative that was synthesized by using 1,4-diazabicyclo[2.2.2]octane–polyethylene glycol (DABCO-PEG) 400. Ionic liquid was prepared via the alkylation of DABCO using 1-pentyl bromide followed by mixing with PEG 400. The structure of the synthesized molecules was characterized through single-crystal XRD. The target flavanone, viz., 2-(4-isobutylphenyl)chroman-4-one, was subjected to free radical activity. In addition, in silico studies were carried out with proteins ribonucleotide reductase and tyrosinase and isobutyl containing flavanone, viz., 2-(4-isobutylphenyl)chroman-4-one. The flavanone 2-(4-isobutylphenyl)chroman-4-one showed significant inhibition at a concentration of 25 μg/ml compared to vitamin C, which was also supported by the molecular docking studies. The flavanones exhibit binding energies of −6.45 and −6.83 kcal/mol for ribonucleotide reductase and tyrosinase, respectively. The results were further validated by molecular dynamic simulations, which recommended that further investigation of this flavanone must be carried out before using it in potent drug discovery in the field of skin cancer.