Synthesis
Using 1-(benzyloxy)-3-nitrobenzene as the starting material, the reaction was carried out using an experimental method similar to that of Example 59, in which ferrous acetate (II), nickel nitrate (II), or cobalt acetylacetonate (III) was chosen as the metal reducing agent. The experimental results are detailed in Table 11. The data of Examples 60 to 66 show that the reaction rate is significantly enhanced when metal compounds such as iron, nickel or cobalt salts and amine additives such as pyrrolidine are added to the catalytic reduction system of the present invention in the presence of a rhodium/carrier catalyst. Under this condition, functional groups such as benzyl ether, which are easy to reduce, are retained, and nitro is selectively reduced to amino, thereby increasing the yield of the target products 3-benzyloxyaniline and 3-aminophenol.
