Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Journal of Organic Chemistry called Synthesis of Benzoxazoles from 2-Aminophenols and β-Diketones Using a Combined Catalyst of Bronsted Acid and Copper Iodide, Author is Mayo, Muhammad Shareef; Yu, Xiaoqiang; Zhou, Xiaoyu; Feng, Xiujuan; Yamamoto, Yoshinori; Bao, Ming, which mentions a compound: 6797-13-3, SMILESS is CCC1=NC2=CC=CC=C2O1, Molecular C9H9NO, Recommanded Product: 2-Ethylbenzo[d]oxazole.
Cyclization reactions of 2-aminophenols with β-diketones catalyzed by a combination of Bronsted acid and CuI are presented. Various 2-substituted benzoxazoles were obtained through these reactions. Different substituents such as Me, chloro, bromo, nitro, and methoxy on 2-aminophenol are tolerated under the optimized reaction conditions.
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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem