– (+)-1-(1-Naphthyl)ethylamine ((+)-1-(1-NEA)) acts as a chiral modifier to introduce enantioselectivity in catalytic hydrogenation reactions. The 1-NEA compound facilitates H-D exchange with D2 in solution, establishing an N?D bond. This indicates that 1-NEA enables adsorption and protonation on Pt surfaces through its amine N atom, suggesting the potential of NEA molecules to impart enantioselectivity to Pt hydrogenation catalysts.