Reduction of halogenated dinitro-triphenyl ethers over Fe-HCl gave halogenated diamino-triphenyl ethers in 77.0-94.0%.The reaction were fast and easy to operate while water was used as a proton-donator and ethanol was...Reduction of halogenated dinitro-triphenyl ethers over Fe-HCl gave halogenated diamino-triphenyl ethers in 77.0-94.0%.The reaction were fast and easy to operate while water was used as a proton-donator and ethanol was used as a solvent.展开更多
以加氢制备3,4-二氯苯胺为探针反应,考察Pt-Cu-V/C用于加氢制备卤代芳胺的选择性和活性。得到较佳的工艺条件:100 m L乙醇,50 g 3,4-二氯硝基苯,0.02 g催化剂(占硝基物质量的0.04%),反应温度75℃,反应压力1.0 MPa。实验结果表明:反应无...以加氢制备3,4-二氯苯胺为探针反应,考察Pt-Cu-V/C用于加氢制备卤代芳胺的选择性和活性。得到较佳的工艺条件:100 m L乙醇,50 g 3,4-二氯硝基苯,0.02 g催化剂(占硝基物质量的0.04%),反应温度75℃,反应压力1.0 MPa。实验结果表明:反应无脱氯副反应发生,产物含量达到99.9%;催化剂不补加,可连续套用2次。展开更多
文摘Reduction of halogenated dinitro-triphenyl ethers over Fe-HCl gave halogenated diamino-triphenyl ethers in 77.0-94.0%.The reaction were fast and easy to operate while water was used as a proton-donator and ethanol was used as a solvent.
文摘以加氢制备3,4-二氯苯胺为探针反应,考察Pt-Cu-V/C用于加氢制备卤代芳胺的选择性和活性。得到较佳的工艺条件:100 m L乙醇,50 g 3,4-二氯硝基苯,0.02 g催化剂(占硝基物质量的0.04%),反应温度75℃,反应压力1.0 MPa。实验结果表明:反应无脱氯副反应发生,产物含量达到99.9%;催化剂不补加,可连续套用2次。