39189-74-7

Basic information

• Product Name: 2-heptylidenecyclopentan-1-one
• Synonyms: 2-heptylidenecyclopentan-1-one;2-heptylidene-cyclopentanon;Cyclopentanone, 2-heptylidene- (6CI, 9CI);Cyclopentanone,2-heptylidene-(6CI,9CI);2-Heptylidenecyclopentanone
• CAS NO: 39189-74-7
• Molecular Formula: C₁₂H₂₀O
• Molecular Weight: 180.2866
• EINECS: 254-339-6
• Mol File: 39189-74-7.mol
• Article Data: 10

Chemical Properties

• Boiling Point: 276.7 °C at 760 mmHg
• Flash Point: 118.468 °C
• Appearance: /
• Density: 0.975 g/cm³
• Vapor Pressure: 0.00473mmHg at 25°C
• Refractive Index: 1.531
• Storage Temp.: Refrigerator
• Solubility: Chloroform (Slightly), Methanol (Slightly)
• CAS DataBase Reference: 2-heptylidenecyclopentan-1-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2-heptylidenecyclopentan-1-one(39189-74-7)
• EPA Substance Registry System: 2-heptylidenecyclopentan-1-one(39189-74-7)

Safety Data

• Hazardous Substances Data: 39189-74-7(Hazardous Substances Data)

Usage

Uses

2-Heptylidenecyclopentanone is a common substance that is found in fragrances.

InChI:InChI=1/C12H20O/c1-2-3-4-5-6-8-11-9-7-10-12(11)13/h8H,2-7,9-10H2,1H3/b11-8+

Upstream product

• 111-71-7 heptanal 
• 120-92-3 cyclopentanone 
• 936-52-7 1-(N-morpholino)cyclopent-1-ene 
• 93430-30-9 2-(1-hydroxyheptyl)cyclopentanone 
• 137-03-1 2-heptylcyclopentanone 
• 930-30-3 cyclopent-2-enone 

Downstream Products

• 137-03-1 2-heptylcyclopentanone 

Relevant articles and documents

Synthesis and odor of optically active 2-n-hexyl- and 2-n-heptylcyclopentanone and the corresponding δ-lactones

Enantiomeric 2-n-hexyl- and 2-n-heptylcyclopentanones (3) and (4) have been synthesized by asymmetric hydrogenation of 2-n-hexylidene and 2-n-heptylidenecyclopentanones (1) and (2) with Ru2Cl4[p-tolyl-binap]2NEt3/sub

Method for synthesizing 2-heptyl cyclopantanone by using dimethylamine as catalyst

The invention discloses a method for synthesizing 2-heptyl cyclopantanone by using dimethylamine as a catalyst. The method comprises the following steps: in the presence of a dimethylamine catalyst, performing a reaction on cyclopentanone and n-heptylaldehyde for 8-10 hours at 60-80 DEG C, adding glacial acetic acid to enhance the reaction in the reaction process, after the reaction is completed, adjusting the pH value to be 6-7, adding methylbenzene, performing stirring at 100-120 DEG C till no water is generated any more, and finally performing washing and drying, thereby obtaining a finished product. Due to adoption of the dimethylamine catalyst, the reaction progress and the selectivity of the reaction can be controlled, the utilization rate of reactant atoms can be increased, and the purpose of high-efficiency productivity of an aldol reaction can be achieved.

A novel pyrrolidine imide catalyzed direct formation of α,β-unsaturated ketones from unmodified ketones and aldehydes

(Chemical Equation Presented) A method for direct, stereoselective preparation of (E)-α,β-unsaturated ketones from ketones and aldehydes, promoted by a novel pyrrolidine imide organocatalyst, has been developed in moderate to high yields. Unlike the Claisen-Schmidt condensation and Lewis acid catalyzed tandem aldol-dehydration processes, this method provides mild reaction conditions to access α,β-unsaturated ketones from simple, unmodified ketones.