Starbon/High-Amylose Corn Starch-Supported N-Heterocyclic Carbene-Iron(III) Catalyst for Conversion of Fructose into 5-Hydroxymethylfurfural
作者:Avtar S. Matharu、Suleiman Ahmed、Badriya Almonthery、Duncan J. Macquarrie、Yoon-Sik Lee、Yohan Kim
DOI:10.1002/cssc.201702207
日期:2018.2.22
Both catalyst types showed good performance for the dehydration of fructose to HMF when the reaction was tested at 100 °C with varying time (10 min, 20 min, 0.5 h, 1 h, 3 h and 6 h). For Fe‐NHC/S350, the highest HMF yield was 81.7 % (t=0.5 h), with a TOF of 169 h−1, fructose conversion of 95 %, and HMF selectivity of 85.7 %, whereas for Fe‐NHC/expanded HACS, the highest yield was 86 % (t=0.5 h), with
铁-N-杂环卡宾配合物(Fe-NHCs)因其在各种催化反应中的应用而备受关注,这些反应包括从CC交叉偶联和CX键的形成到取代,还原,聚合和脱水反应。报道了固定在介孔膨化高直链玉米淀粉(HACS)和Starbon 350(S350)上的新型非均相Fe‐NHC催化剂的详细合成,表征和应用,该催化剂可轻松将果糖转化为5-羟甲基糠醛(HMF)。当在100°C下以不同时间(10分钟,20分钟,0.5小时,1小时,3小时和6小时)测试反应时,两种催化剂类型均显示出良好的果糖脱水至HMF的性能。对于Fe‐NHC / S350,最高HMF产率为81.7%(t = 0.5 h),TOF为169 h -1,果糖转化率为95%,HMF选择性为85.7%,而对于Fe-NHC /膨胀HACS,最高收率为86%(t = 0.5 h),TOF为206 h -1,果糖转化率为87% ,HMF选择性为99%。Fe-NHC /膨胀淀粉和Fe-NHC