Supported Aqueous Phase Catalysis

负载型水相催化

• 批准号: 8719560
• 负责人: Brian Hanson
• 金额: $ 23.32万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-08-01 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8719560&HistoricalAwards=false
• 关键词: Supported; Aqueous; Phase; Catalysis

This is an investigation of a novel approach to catalysis called supported aqueous-phase catalysis. A catalyst dissolved in water is used to promote reactions of a liquid substrate that is immiscible with water; thus any action should occur at the liquid-liquid interface. In order to increase the area of contact between the two liquid phases, the aqueous phase is immobilized in the pores of a high-surface-area solid. Several potential aqueous-phase catalysts are being synthesized and characterized; these are based on known homogeneous catalysts. Test reactions include ring closure and hydroformylation. Activity and selectivity are measured. Supported liquid-phase catalysts may offer novel selectivities and will certainly provide more efficient catalyst separation than do homogeneous catalysts. They could provide a major competitive advance for pharmaceutical and specialty chemical synthesis.

这是一个新的催化方法的调查， 负载型水相催化 一种溶于水的催化剂， 用于促进不混溶的液体基质的反应 与水;因此，任何行动都应该发生在液体-液体 接口. 为了增加两者的接触面积 在液相中，将水相固定在多孔介质的孔中， 高表面积固体。 几种潜在的水相催化剂 正在合成和表征;这些都是基于已知的 均相催化剂 测试反应包括环闭合和 水蒸气 测量活性和选择性。 负载型液相催化剂可提供新颖的选择性， 当然会提供比现有技术更有效的催化剂分离 均相催化剂 他们可以提供一个重大的竞争优势 用于制药和特种化学合成。