OMS-2/H2O2/Dimethyl Carbonate: An Environmentally-Friendly Heterogeneous Catalytic System for the Oxidative Synthesis of Benzoxazoles at Room Temperature,Organic Process Research & Development

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OMS-2/H2O2/Dimethyl Carbonate: An Environmentally-Friendly Heterogeneous Catalytic System for the Oxidative Synthesis of Benzoxazoles at Room Temperature
Organic Process Research & Development ( IF 3.1 ) Pub Date : 2017-11-16 00:00:00 , DOI: 10.1021/acs.oprd.7b00315
Xu Meng ₁ , Yuanguang Wang ₁ , Baohua Chen ₂ , Gexin Chen ₁ , Zhenqiang Jing ₃ , Peiqing Zhao ₁

Affiliation

A manganese octahedral molecular sieve (OMS-2) was found to be an efficient and recyclable heterogeneous catalyst for the oxidative synthesis of benzoxazoles in the gram-scale from phenolic imines at room temperature. H₂O₂ and biobased reagent dimethyl carbonate (DMC) were successfully employed as the environmentally friendly oxidant and solvent, respectively, in an OMS-2-catalysted redox reaction for the first time. Benzoxazoles could also be obtained from N-substituted 2-aminophenols via Cu(OH)_x/OMS-2-catalyzed sequential oxidative transformation at elevated temperatures.

中文翻译：

OMS-2 / H ₂ O ₂ /碳酸二甲酯：室温下氧化合成苯并恶唑的环保多相催化体系

锰八面体分子筛（OMS-2）被发现是一种高效且可回收的异构催化剂，用于在室温下以克为单位从酚亚胺氧化合成苯并恶唑。H ₂ O ₂和生物基试剂碳酸二甲酯（DMC）分别成功地首次在OMS-2催化的氧化还原反应中用作环境友好型氧化剂和溶剂。苯并恶唑还可以在高温下通过Cu（OH）_x / OMS-2-催化的连续氧化转化反应从N-取代的2-氨基苯酚获得。

更新日期：2017-11-19

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