Omega-aminoalkane nitriles

摘要

(A) Improved preparation of omega-aminoalkane nitriles, wherein a suitable lactam is treated with an excess of ammonia at between 280 and 400 deg.C, preferably between 300 and 360 deg.C in the presence of a catalyst. Suitable catalysts for the reaction are titanium dioxide, either natural or synthetic on a base of fluorinated aluminium oxide, fluorinated magnesium silicate or the fluorinated silicates of calcium, zinc, aluminium, manganese or iron. - (B) omega-aminododecanoic acid nitrile - Intermediates. - The use of improved catalysts gives improved yields of the product.