| 摘要 |
PURPOSE:To obtain the titled high-purity compound in high yield and inexpensively, by dinitrating a nucleus halogen-substituted diphenyl ether and subjecting the prepared dinitro compound to hydrogenation reaction or to the hydrogenation reaction and dehalogenation reaction of nucleus-substituted halogen. CONSTITUTION:A compound shown by formula I (X1-X4 are halogen; A1 and A2 are H or halogen) is dinitrated to give a corresponding nucleus halogen- substituted group-containing 3,3'- or 5,5'-dinitrodiphenyl ether compound and the nucleus compound is subjected to hydrogenation reaction to convert nitro group to corresponding amino group or to the halogenation reaction and dehalogenation reaction of nucleus-substituted halogen to give a 3,3'- diaminodiphenyl ether compound. Or a compound shown by formula II (X21-X25 are halogen; A10 are H or halogen; B2 is nitro, nitroso or amino) is dinitrated and simultaneously nitroso group is oxidized to give a 3,4,4'- or 5,4,4'-trinitro compound, from which a 3,4,4'-trinitrophenyl ether compound is obtained. |
