TiO2ZrO2 composite: Synthesis,characterization and application as a facile,expeditious and recyclable catalyst for the synthesis of 2-aryl substituted benzoxazole derivatives期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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TiO2ZrO2 composite: Synthesis,characterization and application as a facile,expeditious and recyclable catalyst for the synthesis of 2-aryl substituted benzoxazole derivatives

Authors:	Mahadeo R Patil Jayesh T Bhanushali Bhari Mallanna Nagaraja Rangappa S Keri

Institution:	Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, 562112, India

Abstract:	The activity of an efficient mesoporous TiO₂ $/>ZrO<sub>2</sub> composite catalyst for the synthesis of 2-aryl substituted benzoxazole derivatives using 2-aminophenol and substituted benzaldehydes/heterocyclic aldehydes at moderate temperature was studied. The catalyst was prepared by a co-precipitation method and characterized by X-ray diffraction, BET surface area and scanning electron microscopy. The effect of temperature, solvents and catalyst concentration on the synthesis of benzoxazole derivatives was systematically investigated. Short reaction times, green-reaction profiles, good to excellent yields, reliable cost efficiency, simple workup conditions and reusability of an eco-friendly catalyst are the noteworthy highlights of the reported method. The catalyst could be easily recovered and reused several times without any significant loss in the yield. The use of the present catalytic system to mediate the title chemical synthesis in a synthetic operation is important for the development of new atom-economic strategies and this is efficient in building complex structures from simple starting materials in an environmentally benign fashion.</td> </tr> <tr> <td align=$
Keywords:	Benzoxazole Co-precipitation method Mesoporous catalyst
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