4819-67-4

Basic information

• Product Name: 2-N-PENTYLCYCLOPENTANONE
• Synonyms: QUINTONE;(R,S)-2-Pentyl-cyclopentanone;2-pentylcyclopentan-1-one;2-pentyl-cyclopentanon;2-Pentylcyclopentanone;2-pentyl-Cyclopentanone;R,S-2-Pentyl-cyclopentanone;2-N-PENTYLCYCLOPENTANONE
• CAS NO: 4819-67-4
• Molecular Formula: C₁₀H₁₈O
• Molecular Weight: 154.25
• EINECS: 225-392-2
• Mol File: 4819-67-4.mol
• Article Data: 22

Chemical Properties

• Boiling Point: 217.7 °C at 760 mmHg
• Flash Point: 78.3 °C
• Appearance: /
• Density: 0.895 g/cm³
• Vapor Pressure: 0.131mmHg at 25°C
• Refractive Index: 1.451
• Storage Temp.: 2-8°C
• Water Solubility: 278.8mg/L at 20℃
• CAS DataBase Reference: 2-N-PENTYLCYCLOPENTANONE(CAS DataBase Reference)
• NIST Chemistry Reference: 2-N-PENTYLCYCLOPENTANONE(4819-67-4)
• EPA Substance Registry System: 2-N-PENTYLCYCLOPENTANONE(4819-67-4)

Safety Data

• Hazardous Substances Data: 4819-67-4(Hazardous Substances Data)

Usage

Description

2-N-Pentylcyclopentanone is a colorless liquid with a complex floral, aromatic, fruity odor and a lactonic undertone. It is synthesized through aldol condensation of cyclopentanone with corresponding aliphatic aldehydes, followed by hydrogenation of the double bond. The (R)-enantiomers of 2-alkylcyclopentanones can be prepared in high optical purity using enzymatic methods.

Uses

Used in Fragrance Industry:
2-N-Pentylcyclopentanone is used as a fragrance ingredient for its complex floral, aromatic, fruity odor and lactonic undertone. It is particularly utilized in jasmine, herbal, and lavender compositions, adding depth and richness to the scent.
Used in Flavor Industry:
2-N-Pentylcyclopentanone can also be used as a flavoring agent, contributing to the enhancement of various flavors in the food and beverage industry due to its unique aromatic properties.

Flammability and Explosibility

Nonflammable

InChI:InChI=1/C10H18O/c1-2-3-4-6-9-7-5-8-10(9)11/h9H,2-8H2,1H3

Upstream product

• 120-92-3 cyclopentanone 
• 16424-35-4 2-pentylidenecyclopentan-1-one 
• 24852-03-7 2-Ethoxycarbonyl-2-pentyl-1-cyclopentanone 
• 83135-35-7 allyl 1-pentyl-2-oxocyclopentanecarboxylate 
• 55443-08-8 2-n-pentyl-2-carbomethoxy-1-cyclopentanone 
• 65195-16-6 2-n-Pentyl-2-phenylthio-cyclopentanon 
• 628-17-1 amyl iodide 
• 19980-43-9 1-(trimethylsilyloxy)cyclopentene 
• 109-67-1 1-penten 
• 25564-22-1 2-pentyl-2-cyclopenten-1-one 
• 14090-60-9 2-cyclopentylidene-1,1-dimethylhydrazine 
• 110-53-2 1-Bromopentane 
• 10472-24-9 methyl 2-oxocyclopentane-1-carboxylate 
• 110-62-3 pentanal 

Downstream Products

• 386224-25-5 1-methyl-2-pentyl-cyclopent-2-enol 
• 25564-22-1 2-pentyl-2-cyclopenten-1-one 
• 70396-78-0 2-n-pentyl-4-cyclopentenone 
• 24851-93-2 2-pentylcyclopent-1-en-1-yl acetate 
• 2825-91-4 (R)-δ-decalactone 
• 59285-67-5 (S)-(-)-tetrahydro-6-pentyl-2H-pyran-2-one 
• 484050-00-2 C₁₀H₂₀O 
• 484049-98-1 C₁₀H₂₀O 
• 1358606-55-9 2-pentyl-1-cyclopentanone p-toluenesulfonylhydrazone 
• 94113-44-7 6-pentyl-1,4-dioxaspiro[4.4]nonane 
• 32821-72-0 δ-decanolactone 
• 2570-03-8 (+/-)-methyl dihydroepijasmonate 
• 51806-24-7 methyl 1-hydroxy-2-pentylcyclopent-2-eneacetate 
• 51806-23-6 methyl 1-carboxymethyl-1-(2-pentyl-3-oxocyclopentyl)acetate 

Relevant articles and documents

Synthesis process of natural delta-decalactone

The invention relates to a synthesis process of natural delta-decalactone, and belongs to the technical field of food additives, and the natural delta-decalactone is obtained by taking furfural and n-amyl alcohol as raw materials through chlorination, Grignard coupling, Piancatelli rearrangement, hydrogenation and oxidation. The purity of the delta-decalactone prepared in the synthesis process of the natural delta-decalactone can reach 98% or above, the natural degree detected by isotope mass spectrometry C14 is 95% or above, and the problems that the synthesis route of the delta-decalactone is complex and the yield is low are solved; and the experimental method is simple, convenient and feasible, the reaction condition is mild, the experimental condition is easy to realize and control, and the method has the characteristics that the raw materials are easy to obtain and rich in source, the yield is relatively high, the used catalyst can be repeatedly used and the like.

HYDROSILANE/LEWIS ACID ADDUCT, PARTICULARLY ALUMINUM, IRON, AND ZINC, METHOD FOR PREPARING SAME, AND USE OF SAID SAME IN REACTIONS FOR REDUCING CARBONYL DERIVATIVES

Disclosed is an adduct between a Lewis acid, preferably aluminum trichloride, iron trichloride, or zinc dichloride, and a hydrosilane;—a method for preparing same; and a method for for reducing, particularly, an aldehyde, a ketone, an α,β-unsaturated ketone, an imine, or an α,β-unsaturated imine.

Kinetic Patterns of Condensation of Alkyl- and Cycloalkylcyclopentanones with Dihydric Alcohols in the Presence of Polyoxomolybdate Modified with Oxides of Rare-Earth Elements

The results of condensation of C5–C7 alkyl- and cycloalkyl-substituted cyclopentanones with diatomic vicinal alcohols in the presence of polyoxomolybdate modified with gadolinium oxide are considered. Kinetic patterns are investigated and a kinetic model of the process is proposed. It was established that alkyl- and cycloalkyl derivatives of dioxaspironone are formed directly by two parallel-consecutive routes and through the stages of the preparation of the corresponding hemiacetal. The ratio of the rate constants of these routes depends on the composition and structure of the starting ketones and diols.