A preparation method of substituted primary amine is disclosed. The preparation method uses cyanophenyl and a derivative thereof as raw materials, nanoporous palladium as a catalyst, and H.sub.2 as a hydrogen source, and conducts selective hydrogenation to prepare the substituted primary amine. The molar concentration of the cyanophenyl and the derivative thereof in the solvent is 0.01-2 mmol/mL, and the molar ratio of the cyanophenyl to the derivative thereof to the catalyst is 1:0.01-1:0.5. The size of a pore framework of the nanoporous palladium is 1 nm-50 nm. The pressure of the H.sub.2 is 0.1-20.0 MPa. The obtained product has high selectivity; the present invention has mild reaction conditions, does not need any additive, and has simple operation and post-processing and good catalyst reproducibility. After repeatedly used, the catalytic activity of the present invention is not significantly reduced, thereby providing the possibility of realizing industrialization.

A preparation method of substituted primary amine is disclosed. The preparation method uses cyanophenyl and a derivative thereof as raw materials, nanoporous palladium as a catalyst, and H.sub.2 as a hydrogen source, and conducts selective hydrogenation to prepare the substituted primary amine. The molar concentration of the cyanophenyl and the derivative thereof in the solvent is 0.01-2 mmol/mL, and the molar ratio of the cyanophenyl to the derivative thereof to the catalyst is 1:0.01-1:0.5. The size of a pore framework of the nanoporous palladium is 1 nm-50 nm. The pressure of the H.sub.2 is 0.1-20.0 MPa. The obtained product has high selectivity; the present invention has mild reaction conditions, does not need any additive, and has simple operation and post-processing and good catalyst reproducibility. After repeatedly used, the catalytic activity of the present invention is not significantly reduced, thereby providing the possibility of realizing industrialization.

An alkylene-diamine, a hydroxyalkylene-amine, and hydrogen are reacted in presence of a heterogenous catalyst containing copper to produce polyalkylene-polyamines.

An alkylene-diamine, a hydroxyalkylene-amine, and hydrogen are reacted in presence of a heterogenous catalyst containing copper to produce polyalkylene-polyamines.

An alkylene-diamine, a hydroxyalkylene-amine, and hydrogen are reacted in presence of a heterogenous catalyst containing copper to produce polyalkylene-polyamines.

Disclosed is a method for efficiently synthesizing primary amines, which comprises using carbonyl compounds or alcohol compounds as reaction substrate, liquid ammonia or alcohol solutions of ammonia as nitrogen source, and hydrogen as hydrogen source, and reacting in reaction medium catalyzed by a cobalt-based catalyst to obtain the primary amines. Due to high catalytic activity, the method can realize the reductive amination of carbonyl compounds and the hydrogen-borrowing amination of alcohol compounds at low temperatures in a short time to obtain the primary amines with high yield, and is applicable to a wide range of substrates. The obtained primary amines can be used as raw materials with high extra value for producing polymers, medicines, dyes and surfactants. Further, the cobalt-based catalyst has a good industrial application prospect because it is magnetic which can facilitate separation and recycling of the catalyst. Moreover, the inexpensive cobalt-based catalyst can significantly reduce industrialization cost.

Disclosed is a method for efficiently synthesizing primary amines, which comprises using carbonyl compounds or alcohol compounds as reaction substrate, liquid ammonia or alcohol solutions of ammonia as nitrogen source, and hydrogen as hydrogen source, and reacting in reaction medium catalyzed by a cobalt-based catalyst to obtain the primary amines. Due to high catalytic activity, the method can realize the reductive amination of carbonyl compounds and the hydrogen-borrowing amination of alcohol compounds at low temperatures in a short time to obtain the primary amines with high yield, and is applicable to a wide range of substrates. The obtained primary amines can be used as raw materials with high extra value for producing polymers, medicines, dyes and surfactants. Further, the cobalt-based catalyst has a good industrial application prospect because it is magnetic which can facilitate separation and recycling of the catalyst. Moreover, the inexpensive cobalt-based catalyst can significantly reduce industrialization cost.

The present invention relates to a preparation method of chiral primary amine. The chiral primary amine is prepared through a one-pot method that under the action of a ruthenium-chiral diphosphine catalyst, a simple ketone and an ammonium salt RCOONH.sub.4 have reductive amination by adding hydrogen and then are heated and hydrolyzed by adding acid. The present invention has the advantages of good substrate universality, high reaction efficiency and the like

##STR00001##

The present invention relates to a preparation method of chiral primary amine. The chiral primary amine is prepared through a one-pot method that under the action of a ruthenium-chiral diphosphine catalyst, a simple ketone and an ammonium salt RCOONH.sub.4 have reductive amination by adding hydrogen and then are heated and hydrolyzed by adding acid. The present invention has the advantages of good substrate universality, high reaction efficiency and the like

##STR00001##

The present invention relates to a preparation method of chiral primary amine. The chiral primary amine is prepared through a one-pot method that under the action of a ruthenium-chiral diphosphine catalyst, a simple ketone and an ammonium salt RCOONH.sub.4 have reductive amination by adding hydrogen and then are heated and hydrolyzed by adding acid. The present invention has the advantages of good substrate universality, high reaction efficiency and the like

##STR00001##