Methanol reacts with aminoarenes in the presence of a catalytic amount of ruthenium trichloride hydrate combined with tributylphosphite at 180 °C to give the corresponding N-methylaminoarenes in high yields.

Ruthenium complex shows high catalytic activity for the reaction of 2-aminophenol with primary alcohols to give the corresponding 2-substituted benzoxazoles in high yields. Similarly, 2-substituted benzimidazoles are also synthesized readily by the ruthenium catalyzed reaction of 1,2-phenylenediamine with primary alcohols.

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