Controllable preparation of ruthenium-based catalysts modified with lithium and study of catalytic performance in the hydrogenation of 2,4-diaminotoluene

In the hydrogenation of 2,4-diaminotoluene, deamination is the main side reaction, so it needs inhibition. Alkali-modified catalyst support enhances hydrogenation performance, and the mechanism of Li promoting benzene ring hydrogenation was explored.