| abstract |
The present invention performs the main reaction until the 2,2,6,6-tetramethylpiperidin-4-one is converted to 80% or more at a pressure of 50 bar or less and a temperature of 120 ° C or less, and then Post-reaction at high and high pressures relative to pressure and temperature, characterized in that 2,2,6,6-tetramethylpiperidin-4-one with ammonia and hydrogen in the presence of a nickel or cobalt catalyst and water A method for producing 4-amino-2,2,6,6-tetramethylpiperidine by reaction. |