825-25-2

Basic information

• Product Name: 2-CYCLOPENTYLIDENECYCLOPENTANONE
• Synonyms: 2-CYCLOPENTYLIDENE-1-CYCLOPENTANONE;2-CYCLOPENTYLIDENECYCLOPENTANONE;cyclopentylidenecyclopentan-2-one;2-Cyclopentylidenecyclopentane-1-one;Δ1,1'-Bi[cyclopentane]-2-one;Δ1,1'-Bicyclopentane-2-one;2-Cyclopentylidenecyclopentanone,97%;BICYCLOPENTYLIDENE-2-ONE
• CAS NO: 825-25-2
• Molecular Formula: C₁₀H₁₄O
• Molecular Weight: 150.22
• EINECS: 212-542-7
• Mol File: 825-25-2.mol
• Article Data: 45

Chemical Properties

• Melting Point: 74-75 °C
• Boiling Point: 231.78°C (rough estimate)
• Flash Point: 104°C
• Appearance: /
• Density: 1 g/cm3
• Vapor Pressure: 0.0142mmHg at 25°C
• Refractive Index: 1.5215 (estimate)
• CAS DataBase Reference: 2-CYCLOPENTYLIDENECYCLOPENTANONE(CAS DataBase Reference)
• NIST Chemistry Reference: 2-CYCLOPENTYLIDENECYCLOPENTANONE(825-25-2)
• EPA Substance Registry System: 2-CYCLOPENTYLIDENECYCLOPENTANONE(825-25-2)

Safety Data

• Hazardous Substances Data: 825-25-2(Hazardous Substances Data)

Usage

Description

2-Cyclopentylidenecyclopent-2-enone, also known as Bicyclopentylidene-2-one, is a chemical compound derived from Cyclopentanone. It is characterized by its unique bicyclic structure and is used in the synthesis of various organic compounds.

Uses

Used in Pharmaceutical Industry:
2-Cyclopentylidenecyclopent-2-enone is used as a key intermediate in the synthesis of peptidase IV inhibitors, which are important for the treatment of type 2 diabetes. Its unique structure allows for the development of novel therapeutic agents that can effectively manage blood sugar levels in diabetic patients.
Used in Organic Synthesis:
2-Cyclopentylidenecyclopent-2-enone is also used as a building block in the synthesis of various simple and complex organic compounds. Its versatile structure makes it a valuable component in the creation of new molecules with potential applications in various industries, such as pharmaceuticals, agrochemicals, and materials science.

InChI:InChI=1/C10H14O/c11-10-7-3-6-9(10)8-4-1-2-5-8/h1-7H2

Upstream product

• 110-89-4 piperidine 
• 141-78-6 ethyl acetate 
• 120-92-3 cyclopentanone 
• 60-29-7 diethyl ether 
• 64-17-5 ethanol 
• 127-09-3 sodium acetate 
• 6261-30-9 (+/-)-2-Cyclopentylidenecylopenta-1-ol 
• 7440-45-1 cerium 
• 763-51-9 diethyl 2-bromosuccinate 
• 583-55-1 1-Bromo-2-iodobenzene 
• 91-53-2 Ethoxyquin 
• 141-97-9 ethyl acetoacetate 
• 141-52-6 sodium ethanolate 
• 6050-31-3 δ-Cyclopentyliden-valeronitril 

Downstream Products

• 98470-84-9 1-Benzyl-2--cyclopenten-(1) 
• 85554-06-9 2-cyclopent-1-enyl-2-<2-(phenylsulfinyl)-1-ethyl>cyclopentanone 
• 104703-62-0 (E)-trisylhydrazone de la cyclopentylidene-2 cyclopentanone-1 
• 542-28-9 3,4,5,6-tetrahydro-2H-pyran-2-one 
• 2866-71-9 (1,1'-bicyclopentyl)-2-one 
• 117712-77-3 (1'S,1''S)-[1,2';1',1'';2'',1''']Quatercyclopentane-1',1''-diol 
• 103225-42-9 1,1'-Difluoro-bicyclopentyl-2-one 
• 22354-35-4 2-cyclopentylcyclopent-2-en-1-one 
• 4884-25-7 2-cyclopentylcyclopentanol 
• 934-02-1 bicyclopentyl-1,1'-diene 
• 97790-43-7 1-Phenyl-2--cyclopenten-(1) 
• 24071-97-4 5-Cyclopentyl-5-oxo-valeriansaeure-aethylester 
• 102707-14-2 N-bicyclopentyl-2-yl-N-butyl-N'-phenyl-urea 
• 101747-12-0 (+/-)-1-cyclopentyl-3-(benzylidene-(seqtrans))-cyclopentanone-⁽²⁾ 

Relevant articles and documents

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Fine-Bubble-Slug-Flow Hydrogenation of Multiple Bonds and Phenols

We describe a promising method for the continuous hydrogenation of alkenes or alkynes by using a newly developed fine-bubble generator. The fine-bubble-containing slug-flow system was up to 1.4 times more efficient than a conventional slug-flow method. When applied in the hydrogenation of phenols to the corresponding cyclohexanones, the fine bubble-slug-flow method suppressed over-reduction. As this method does not require the use of excess gas, it is expected to be widely applicable in improving the efficiency of gas-mediated flow reactions.

Highly efficient Nb2O5 catalyst for aldol condensation of biomass-derived carbonyl molecules to fuel precursors

Aldol condensation is of significant importance for the production of fuel precursors from biomass-derived chemicals and has received increasing attention. Here we report a Nb2O5 catalyst with excellent activity and stability in the aldol condensation of biomass-derived carbonyl molecules. It is found that in the aldol condensation of furfural with 4-heptanone, Nb2O5 has obviously superior activity, which is not only better than that of other common solid acid catalysts (ZrO2 and Al2O3), more importantly, but also better than that of solid base catalysts (MgO, CaO, and magnesium-aluminum hydrotalcite). The detailed characterizations by N2 sorption/desorption, NH3-TPD, Py-FTIR and DRIFTS study of acetone adsorption reveal that Nb2O5 has a strong ability to activate the C=O bond in carbonyl molecules, which helps to generate a metal enolate intermediate and undergo the nucleophilic addition to form a new C–C bond. Furthermore, the applicability of Nb2O5 to aldol condensation is extended to other biomass-derived carbonyl molecules and high yields of target fuel precursors are obtained. Finally, a multifunctional Pd/Nb2O5 catalyst is prepared and successfully used in the one-pot synthesis of liquid alkanes from biomass-derived carbonyl molecules by combining the aldol condensation with the sequential hydrodeoxygenation.