半三明治型铱催化剂催化氢化葡萄糖制备山梨糖醇

发布时间：2018-03-21 20:53

本文选题：葡萄糖　切入点：山梨糖醇　出处：《有机化学》2017年12期 　论文类型：期刊论文

【摘要】：使用[Cp*Ir-(di-OH-bpy)(OH_2)][SO_4](di-OH-bpy=4,4'-二羟基-2,2'-联吡啶)作催化剂,高效实现了葡萄糖开环加氢制备山梨糖醇.通过氢源的比较和氢气作为氢源的条件优化,山梨糖醇最高产率可达96%.同时研究了铱催化剂中不同配体对加氢效果的影响,并对氢化过程可能的机理进行了相应阐述.Cp*Ir与氢气的催化体系具有反应条件温和、产物选择性高等优点,为其他生物质基平台分子的催化加氢制备高附加值化学品提供了一种有效的方法.
[Abstract]:The synthesis of sorbitol by ring-opening hydrogenation of glucose using [SO_4] [SO_4] di-OH-bpy-4OH-bpy-4OH-bpy-4- dihydroxy-2o-2- (-bipyridine) as catalyst was carried out efficiently, and the conditions of hydrogen as hydrogen source were optimized by comparison of hydrogen sources, and the optimum conditions of hydrogen as hydrogen source were optimized, by using [CpHIr-OH-bpypyridine] [SO_4] as catalyst for the preparation of sorbitol by ring-opening hydrogenation of glucose. The highest yield of sorbitol can reach 96%. The effect of different ligands on hydrogenation of iridium catalyst was studied, and the possible mechanism of hydrogenation was explained. The reaction conditions of the catalyst system with hydrogen were mild. The high selectivity of products provides an effective method for the hydrogenation of other biomass-based platform molecules to produce high value-added chemicals.
【作者单位】：中国科学技术大学化学与材料科学学院安徽省生物质洁净能源重点实验室;
【基金】：国家自然科学基金(Nos.21572212,21402181,21325208) 中国科学院项目基金(Nos.XDB20000000,YZ201563) 中央高校基础研究经费教育部长江学者和创新团队发展计划安徽省科技攻关计划(No.1604a0702027)资助项目~~
【分类号】：O643.36;TQ223.166

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