Comptes Rendus Chimie

Tungstate sulfuric acid as an efficient catalyst for the synthesis of benzoxazoles and benzothiazoles under solvent-free conditions

M Farahi, B Karami, M Azari

文献索引：Farahi, Mahnaz; Karami, Bahador; Azari, Masume Comptes Rendus Chimie, 2013 , vol. 16, # 11 p. 1029 - 1034

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被引用次数: 9

摘要

Heterogeneous solid catalysts have gained much attention in recent years, as they possess a number of advantages, such as cleaner reaction, easier work-up, reduced reaction time, and eco-friendliness [1] and [2]. These considerations are currently driving our effort to develop heterogeneous organic transformations. Tungstate sulfuric acid (TSA) is an alternative to sulfuric acid that was synthesized by the reaction of anhydrous sodium tungstate with chlorosulfonic acid [3]. ...