Aza-Michael addition reactions between nitroolefins and benzotriazole catalyzed by MCM-41 immobilized heteropoly acids in water |
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| Authors: | Shao-Lei Xie Yong-Hai Hui Xiang-Ju Long Chang-Chun Wang Zheng-Feng Xie |
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| Affiliation: | Key Laboratory of Oil(&)Gas Fine Chemicals, Ministry of Education(&)Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University,Urumqi 830046,China |
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| Abstract: | MCM-41 supported heteropoly acids (HPAs) catalysts were synthesized, characterized and their catalytic activity was evaluated in an aza-Michael addition reaction between nitroolefins and benzotriazole in water at room temperature. 50 wt% PW/MCM-41 showed the highest activity (up to 96% yield). The catalyst was used in six consecutive experiments without obvious loss of activity, confirming the success of the anchoring process and the catalyst stability. |
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| Keywords: | Aza-Michael addition MCM-41 Heteropoly acids Heterogenous catalysts |
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