20667-16-7

Basic information

• Product Name: N-cyclopentylcyclopentanamine
• Synonyms: Dicyclopentylamine; Dicyclopentyl-amine
• CAS NO: 20667-16-7
• Molecular Formula: C₁₀H₁₉N
• Molecular Weight: 153.2646
• Mol File: 20667-16-7.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 216.3°C at 760 mmHg
• Flash Point: 76.9°C
• Density: 0.92g/cm³
• Vapor Pressure: 0.141mmHg at 25°C
• Refractive Index: 1.49
• CAS DataBase Reference: N-cyclopentylcyclopentanamine(CAS DataBase Reference)
• NIST Chemistry Reference: N-cyclopentylcyclopentanamine(20667-16-7)
• EPA Substance Registry System: N-cyclopentylcyclopentanamine(20667-16-7)

Safety Data

• Hazardous Substances Data: 20667-16-7(Hazardous Substances Data)

Upstream product

• 1003-03-8 Cyclopentamine 
• 120-92-3 cyclopentanone 

Downstream Products

• 56420-30-5 Dicyclopentylnitrosamin 
• 101590-70-9 N,N-dicyclopentyl-N'-phenyl-urea 
• 22643-14-7 N-n-octylcyclohexylamine 
• 86781-51-3 1,1-Dicyclopentyl-3-(2,4-dimethyl-phenyl)-urea 

Relevant articles and documents

Morphology-Tuned Activity of Ru/Nb2O5 Catalysts for Ketone Reductive Amination

Amines are important compounds in natural products and medicines. Specifically, cyclopentylamine is one of the value-added chemicals widely used in the production of pesticides, cosmetics and medicines. In this work, three Ru/Nb2O5 catalysts with different Nb2O5 morphologies were used in the reductive amination of cyclopentanone under mild reaction conditions (90 °C, 2 MPa H2), among which 1 %Ru/Nb2O5?L catalyst exhibits best performance with the yield of cyclopentylamine reaching 84 %. This catalytic system is stable and has not significant deactivation even after 5 runs in the durability test. In addition, this catalyst can be extended to a series of aldehydes/ketones. Further comprehensive characterizations (XPS analysis and CO-adsorption DRIFT) reveal that the electronic effect of Ru species can be ruled out; instead, the activity of the catalyst is strongly influenced by the geometric effect. Layered Nb2O5 material possesses the highest surface area, resulting in the highest Ru dispersion, and therefore shows the highest catalytic activity. The in-situ DRIFT-MS technique was also used to reveal and understand the reaction mechanism. It is found that Ru species play a key role in activating carbonyl groups. This study illustrates a promising application of Ru/Nb2O5-Layer catalyst in the synthesis of amine and provides an understanding to the reaction mechanism.

Reaction of primary amines with Pt/C catalyst in water under microwave irradiation: A convenient synthesis of secondary amines from primary amines

Upon microwave irradiation in water, Pt/C converts primary amines into secondary amines in good yield via retro-reductive and reductive amination.