So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Li, Zhen; Fang, Chengtao; Zheng, Yannan; Qiu, Guanyinsheng; Li, Xiaofang; Zhou, Hongwei researched the compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ).Synthetic Route of C9H9NO.They published the article 《Multicatalytic Beckmann rearrangement of 2-hydroxylarylketone oxime: Switchable synthesis of benzo[d]oxazoles and N-(2-hydroxylaryl)amides》 about this compound( cas:6797-13-3 ) in Tetrahedron Letters. Keywords: hydroxybenzene ketoxime organocatalyst zinc chloride catalyst Beckmann rearrangement; benzoxazole preparation; hydroxyaryl amide preparation. We’ll tell you more about this compound (cas:6797-13-3).
A switchable synthesis route was developed for benzo[d]oxazole derivatives and (2-hydroxylaryl)benzamide from 2-hydroxylbenzeneketoxime using organomols. (BOP-Cl, and CNC) and Lewis acid cocatalyzed Beckmann rearrangement (BR) reaction. Further, this reaction was switched using different organocatalysts.
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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem