在温和条件下，由卤化铵促进的蔗糖高效、选择性转化为 5-羟甲基糠醛。
Efficient and selective conversion of sucrose to 5-hydroxymethylfurfural promoted by ammonium halides under mild conditions.
机构信息
Department of Chemistry, Tianjin University, Tianjin 300072, PR China.
出版信息
Carbohydr Res. 2012 Jan 10;347(1):182-5. doi: 10.1016/j.carres.2011.11.013. Epub 2011 Nov 19.
The highly efficient and selective production of 5-hydroxymethylfurfural (HMF) from sucrose has been achieved in the presence of metal chlorides and ammonium halides under mild conditions. Notably, an 87% yield of HMF from sucrose was obtained with a catalyst system composed of CrCl(3) and NH(4)Br at 100°C for 1.0 h in N,N-dimethylacetamide (DMAc) solvent. The effect of the reaction temperature and time was investigated in detail, and a possible mechanism for this catalytic process has been proposed. In addition, NH(4)Br is an effective promoter in the conversion of glucose and fructose to HMF.
在温和条件下，金属氯化物和卤化铵的存在下，从蔗糖中高效且选择性地制备了 5-羟甲基糠醛（HMF）。值得注意的是，在 N,N-二甲基乙酰胺（DMAc）溶剂中，由 CrCl(3)和 NH(4)Br 组成的催化剂体系在 100°C 下反应 1.0 h 后，从蔗糖中获得了 87%的 HMF 产率。详细研究了反应温度和时间的影响，并提出了这种催化过程的可能机理。此外，NH(4)Br 是葡萄糖和果糖转化为 HMF 的有效促进剂。
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