Abstract
Herein, we report a urea-based DES that acts as an amine source in the synthesis of N-substituted styryl quinazolinone from anthranilic acid via N-acylation, cyclization, and subsequent sp3 CH functionalization under a green reaction medium. The salient features of this approach are gram-scale synthesis, mild reaction conditions, and a metal-free methodology. Additionally, post-functionalization and photophysical properties were evaluated.
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