中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
间硝基苯酚 | meta-nitrophenol | 554-84-7 | C6H5NO3 | 139.111 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,3-双(3-氨基苯氧基)苯 | 1,3-bis (3-aminophenoxy)-benzene | 10526-07-5 | C18H16N2O2 | 292.337 |
PROBLEM TO BE SOLVED: To provide a method for isolating, with good workability, 1,3-bis(3-nitrophenoxy)benzene having low content of inorganic, in particular, sodium and bromine ions, from a reaction mixture obtained by reacting a sodium salt of resorcinol with m-bromonitrobenzene in a pyridine solvent in the presence of a monovalent copper catalyst.
SOLUTION: The method for isolating 1,3-bis(3-nitrophenoxy)benzene comprises concentrating the reaction mixture, diluting the concentrated mixture with an ester-based solvent, filtering out an inorganic salt from the diluted mixture, concentrating the filtrate, adding an alcoholic solvent to the concentrate, and collecting the resulting crystals.
COPYRIGHT: (C)2005,JPO&NCIPI
解决方案:隔离1,3-双(3-硝基苯氧基)苯的方法包括浓缩反应混合物,用酯基溶剂稀释浓缩的混合物,从稀释的混合物中过滤出无机盐,浓缩滤液,向浓缩物中加入醇溶剂,并收集得到的晶体。
版权:(C)2005,JPO&NCIPI