4884-25-7

Basic information

• Product Name: 2-CYCLOPENTYL CYCLOPENTANOL
• Synonyms: 2-CYCLOPENTYL CYCLOPENTANOL;[1,1’-bicyclopentyl]-2-ol;[Bicyclopentyl]-2-ol;2-cyclopentylcyclopentan-1-ol
• CAS NO: 4884-25-7
• Molecular Formula: C₁₀H₁₈O
• Molecular Weight: 154.25
• EINECS: 225-496-8
• Mol File: 4884-25-7.mol
• Article Data: 4

Chemical Properties

• Melting Point: 20°C
• Boiling Point: 235.5°C (estimate)
• Flash Point: 101.9°C
• Appearance: /
• Density: 0.9785
• Refractive Index: 1.4884 (estimate)
• PKA: 15.34±0.40(Predicted)
• CAS DataBase Reference: 2-CYCLOPENTYL CYCLOPENTANOL(CAS DataBase Reference)
• NIST Chemistry Reference: 2-CYCLOPENTYL CYCLOPENTANOL(4884-25-7)
• EPA Substance Registry System: 2-CYCLOPENTYL CYCLOPENTANOL(4884-25-7)

Safety Data

• Hazardous Substances Data: 4884-25-7(Hazardous Substances Data)

Usage

General Description

2-Cyclopentyl cyclopentanol, also known as 2-cyclopentylcyclopentan-1-ol, is a cyclic compound with a molecular formula of C10H18O. It is classified as a secondary alcohol and is commonly used in the production of fragrances and flavorings. This chemical compound is also used in organic synthesis as a building block for the creation of more complex molecules. It is a colorless liquid with a slightly sweet odor and is slightly soluble in water. 2-Cyclopentyl cyclopentanol has a variety of potential industrial and commercial applications and is a versatile compound in the field of organic chemistry.

Upstream product

• 2866-71-9 (1,1'-bicyclopentyl)-2-one 
• 120-92-3 cyclopentanone 
• 64-17-5 ethanol 
• 825-25-2 2-cyclopentylidenecyclopentan-1-one 
• 96-41-3 Cyclopentanol 
• 124-04-9 Adipic acid 
• 60-29-7 diethyl ether 
• 491-07-6 (+/-)-menthone 
• 938-16-9 2,2-dimethylpropiophenone 
• 4884-21-3 1-cyclopentyl-cyclopentene 

Downstream Products

• 2866-71-9 (1,1'-bicyclopentyl)-2-one 
• 3021-73-6 cis-decalin-9-carboxylic acid 
• 687996-16-3 cis-2-Cyclopentyl-cyclopentylamin 
• 704209-22-3 (1R,2R)-bicyclopentyl-2-ylamine 
• 101747-12-0 (+/-)-1-cyclopentyl-3-(benzylidene-(seqtrans))-cyclopentanone-⁽²⁾ 
• 773857-84-4 2-acetoxybicyclopentyl 

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.

Self-coupling of secondary alcohols by Ni/CeO2 catalyst

Supported nickel catalysts are studied for the liquid phase CC self-coupling of aliphatic secondary alcohols under additive free conditions in N2 atmosphere. Among various Ni catalysts, 1 or 3 wt% Ni/CeO 2 catalysts pre-reduced in H2 shows highest yield (94%) of a dimer product (a higher ketone) for the self-coupling of 1-octanol at 130 C, and the catalyst is reused. The catalysts are also effective for self-coupling of various secondary alcohols, providing the first heterogeneous catalytic system for the self-coupling of secondary alcohols under mild conditions. Effects of support material and oxidation state of Ni on the activity are studied and it is found that both CeO2 and metallic Ni are indispensable for the reaction. A possible reaction mechanism is proposed, in which ketones, formed by dehydrogenation of alcohol, undergone Aldol condensation to give α,β-unsaturated ketone which is finally hydrogenated by in situ formed NiH species.