Phosphane-Free Green Protocol for Selective Nitro Reduction with an Iron-Based Catalyst
作者:Upendra Sharma、Praveen Kumar Verma、Neeraj Kumar、Vishal Kumar、Manju Bala、Bikram Singh
DOI:10.1002/chem.201003621
日期:2011.5.16
high chemo‐ and regioselective reduction of aromatic nitro compounds to give the corresponding amines in a green solvent system without using any toxic ligand. The catalytic systems were also compatible with a large range of other reducible functional groups, such as keto, acid, amide, ester, halogen, lactone, nitrile, N‐benzyl, O‐benzyl, hydroxy, and heterocycles. In the present study, dinitro compounds
酞菁铁与硫酸铁已成功用于芳香族硝基化合物的高化学和区域选择性还原,从而在绿色溶剂体系中得到相应的胺,而无需使用任何有毒的配体。催化体系还与其他许多可还原的官能团兼容,例如酮,酸,酰胺,酯,卤素,内酯,腈,N-苄基,O-苄基,羟基和杂环。在本研究中,二硝基化合物已被区域选择性还原为相应的胺,且收率很高。在大多数情况下,通过GC-MS分析确定,转化率和选择性均大于99%。