React with tosyl amine to get corresponding imine than reduced it and then finally removed the tosyl group, but you have to check it for economic viability.

HI kannan, If you are avoiding ammonia, a good trade can be ammonium formate, formic acid with a catalytic [RhCp*Cl2]2 or H2-Ni.

Two easy procedures

sulfinamide to first condensation with Tosyl imine and then reduction

or condensation to oxime (H2NOH.HCl) in sodium acetate 50 min at reflux (quantitative) and reaction with sulfinila Tosyl chloride to imine, and then reduced to amine

hugs from Brazil brothers

sulfinamide is more simple to the tosyl imine OK? but need Dean Starks!

You can reduce the oxime with BH3. Very clean reaction, if the rest of your molecule can tolerate exposure to borane.

Pkan,

In your question "How to reduce an aromatic aldehyde to aromatic amine, producing without Ra-Ni and ammonia?"

What do you mean? Do you like to transform ArCHO ---------> ArNRR' is that what you want or you want

ArCHO ----------> ArCH2NRR' if so this is not aromatic amine by definition

Good luck

First reduce aldehyde to alcohol, protect it by mesyl or tosyl then replace it by N3 and finaly reduce this azide to amine by H2,Pd/C. I know it is quite lenghty but effective one.

Convert aldehyde into oxime then reduce oxime formed by using LiAlH4 in dry ether

Heat N-formyl hydrazide in presence of acid catalyst in dioxane or reflux N-formyl hydrazide in high B.P.solvent o-diclorobenzene