Dicyclohexylamine

Packing:50kg,200kg,250kg drum

Specification:  CAS NO.:101-83-7

Appearance: colorless transparent oily liquid Assay： 99%min by GC IR Identity: conform to standard HNMR： conform to standard carbon spectrum: conform to standard Water by K. F.:0.5% max or as per the customer’s request Loss on drying:0.5% max. or as per the customer’s request

Used mainly in

Organic synthesis intermediates: used for the preparation of dyes, rubber accelerators, nitrocellulose paints, insecticides, preservatives, gas-phase corrosion inhibitors, fuel antioxidant additives, etc.

Metal corrosion inhibitors and steel rust inhibitors: applied in oilfield chemicals and industrial cooling systems.

Acidic gas absorbent: capable of absorbing acidic gases such as CO ₂ and H ₂ S.

Catalyst: Its metal complex can be used as a catalyst for inks and paints.

Surfactant precursors: Fatty acid salts or sulfates have cleaning properties and are used in the printing, dyeing, and textile industries.

Titration analysis reagent: High purity (≥99.5%) products can be used for titration confirmation of isocyanates.

Synthesis lines:

 the main industrial synthesis methods for dicyclohexylamine include:

1. Catalytic coupling of cyclohexylamine

Two molecules of cyclohexylamine undergo dehydration and condensation under acidic catalysts (such as sulfuric acid, phosphoric acid) or solid acid catalysts to form dicyclohexylamine.

Reaction equation:

2 C₆H₁₁NH₂ →(C₆H₁₁)₂NH + NH₃

2. Reduction amination of cyclohexanone with ammonia/hydrogen gas

Cyclohexanone first reacts with ammonia to form imine, and then undergoes catalytic hydrogenation (such as Ni, Pd catalysts) to obtain cyclohexylamine, which further reacts to form dicyclohexylamine 10.

3. Preparation from Aniline Hydrogenation (Indirect Route)

Aniline is first hydrogenated to produce cyclohexylamine, and then subjected to the above coupling reaction to obtain dicyclohexylamine.

4. Other methods

There are over 147 synthetic routes reported in the literature, including nucleophilic substitution using cyclohexyl halides and cyclohexylamine sodium salts, electrochemical reduction, and other methods