| abstract |
2-Methylpentanediamine is prepared by selectively liquid-phase hydrogenating a minimum concentration 2-methylglutaronitrile, initially nonammoniacal basic reaction medium in the presence of a catalytically effective amount of a Raney nickel-based catalyst, at a temperature of from 40 DEG to 150 DEG C., at a total pressure of less than 40 bars, and said reaction medium containing not more than 10% by weight of water. |