| 摘要 |
PURPOSE:To obtain the titled compound useful as a raw material for dyes, agricultural chemicals and medicines and a crosslinking agent for plastics, by easy separating operation, by reducing a nitrodiphenyl ether with hydrogen while forming a heterogeneous mixture in the presence of a solvent soluble slightly in a raw material compound. CONSTITUTION:A nitrodiphenyl ether is brought into contact with hydrogen in the presence of a hydrogen reducing catalyst, preferably Pd catalyst, in a heterogeneous system consisting of a solvent, soluble slightly in the above-mentioned compound, and capable of forming a heterogeneous mixture in the reaction system and further a heterogeneous reaction product mixture even after the complation of the reaction, e.g. water, aliphatic hydrocarbon such as hexane, or alicyclic hydrocarbon such as decalin, and the resultant heterogeneous reaction product mixture is separated into phases. The contained catalyst is removed to give the aimed compound. The above-mentioned solvent is preferably used in an amount of 100-400pts.wt. based on 100pts.wt. nitrodiphenyl ether. |
