abstract |
Hydroxypivalaldehyde is reacted with ammonia and hydrogen, in the presence of a nickel catalyst, at 40-150 degrees C, then at 220-300 degrees C. 1,3-diamino-2 , 2-dimethyl-propane which can be prepared by the process according to the invention is a valuable starting product for the preparation of dyes, phytosanitary products, plastics, in particular polyamides and polyurethanes. |