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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Selective and Efficient Production of Biomass-Derived Vinylfurans
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Selective and Efficient Production of Biomass-Derived Vinylfurans

机译:选择性和有效的生物质衍生的乙烯基呋喃的生产

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We describe a two-step catalytic process for the selective and rapid conversion of biomass-derived acetylfurans into vinylfurans. This is accomplished by nearly quantitatively reducing acetylfurans into furyl alcohols using a copper chromite catalyst and exploiting the promoter-like properties of ethanol, the solvent. Subsequently, furyl alcohol is dehydrated using solid-acid catalysts. Catalyst deactivation due to oligomeric species is a major issue, but the activity can be partially recovered by calcination. Optimization of reaction conditions showed that the selectivity could be increased by using nitrobenzene, a polar aprotic solvent. The high-boiling point solvent allows the formation of vinylfurans with a selectivity of up to 85%; the product can be isolated in high purity by distillation.
机译:我们描述了两步催化方法,用于选择性和快速将生物质衍生的乙酰磺脲类转化为乙烯基呋喃。 这是通过使用铜铬铁矿催化剂几乎定量地将乙酰磺脲类减少到呋喃氨酰醇中来实现并利用乙醇的启动子样性能,溶剂。 随后,使用固酸催化剂脱水呋喃醇。 由于寡聚物种引起的催化剂失活是一个主要问题,但可以通过煅烧部分回收活性。 反应条件的优化表明,通过使用硝基苯,极性非质子溶剂可以增加选择性。 高沸点溶剂允许形成乙烯基呋喃的选择性高达85%; 通过蒸馏可以高纯度分离产物。

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