Tungstate sulfuric acid as an efficient catalyst for the synthesis of benzoxazoles and benzothiazoles under solvent-free conditions was written by Farahi, Mahnaz;Karami, Bahador;Azari, Masume. And the article was included in Comptes Rendus Chimie in 2013.Formula: C9H9NO This article mentions the following:
Tungstate sulfuric acid (TSA) was found to be an efficient and reusable catalyst for the synthesis of benzoxazole and benzothiazole derivatives via reactions of ortho esters with o-aminophenols or o-aminothiophenols in high yields. In the experiment, the researchers used many compounds, for example, 2,5-Dimethylbenzoxazole (cas: 5676-58-4Formula: C9H9NO).
2,5-Dimethylbenzoxazole (cas: 5676-58-4) belongs to benzoxazole derivatives. Benzoxazole nucleus is one of the most important heterocyclic compounds exhibiting remarkable pharmacological activities. Due to its versatile biological properties, benzoxazole has been incorporated as an essential pharmacophore and substructure in many medicinal compounds.Formula: C9H9NO
Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem