63141-09-3

Basic information

• Product Name: Ethanone, 1-(1-chlorocyclopropyl)-
• Synonyms: Ethanone, 1-(1-chlorocyclopropyl)-
• CAS NO: 63141-09-3
• Molecular Formula: C₅H₇ClO
• Molecular Weight: 118.562
• Mol File: 63141-09-3.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 150.3 °C at 760 mmHg
• Flash Point: 49.8 °C
• Appearance: /
• Density: 1.16 g/cm³
• Vapor Pressure: 3.87mmHg at 25°C
• Refractive Index: 1.466
• CAS DataBase Reference: Ethanone, 1-(1-chlorocyclopropyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Ethanone, 1-(1-chlorocyclopropyl)-(63141-09-3)
• EPA Substance Registry System: Ethanone, 1-(1-chlorocyclopropyl)-(63141-09-3)

Safety Data

• Hazardous Substances Data: 63141-09-3(Hazardous Substances Data)

Usage

General Description

Ethanone, 1-(1-chlorocyclopropyl)-, also known as 1-chlorocyclopropyl methyl ketone, is a chemical compound with the molecular formula C5H7ClO. It is a colorless liquid with a chloroform-like odor and is insoluble in water but soluble in organic solvents. Ethanone, 1-(1-chlorocyclopropyl)- is mainly used as an intermediate in the synthesis of pharmaceuticals, pesticides, and other organic compounds. It is also used as a reagent in chemical reactions and as a solvent in various industries. However, due to its toxic and irritating nature, it should be handled with extreme caution and proper safety measures.

InChI:InChI=1/C5H7ClO/c1-4(7)5(6)2-3-5/h2-3H2,1H3

Upstream product

• 63141-06-0 3-chloro-5-bromo-2-pentanone 
• 58371-98-5 3, 5-dichloro-2-pentanone 

Downstream Products

• 1311370-61-2 methyl 3-(1-chlorocyclopropyl)-3-oxopropionate 
• 120983-72-4 1-chlorocyclopropyl-2-chloro-ethan-1-one 

Relevant articles and documents

Method for synthesizing prothioconazole intermediate 1-(1-chlorocyclopropyl)ethanone

The invention relates to a method for synthesizing a prothioconazole intermediate, namely 1-(1-chlorocyclopropyl) ethanone, belonging to the technical field of organic synthesis. The method comprises the following steps: adding 3,5-dichloropentanone serving as a raw material into an organic solvent, adding a catalyst and an acid-binding agent at the same time, conducting heating for a reaction until the monitored raw material disappears, and filtering reaction liquid to obtain the intermediate, namely a 1-(1-chlorocyclopropyl)ethanone solution. According to the method, the anhydrous organic solvent is used as the reaction solvent, and an organic base is used as the catalyst, so a reaction system is changed into a homogeneous system, the use of a phase transfer catalyst is reduced, the generation of hydrolysis impurities is avoided, and the prepared reaction liquid can be directly used for the next reaction without post-treatment. As the selected solvent does not contain water, the water content of the obtained reaction liquid is low, the tedious steps of post-treatment and drying for water removal are omitted, and the method has high economical efficiency and environmental protection property.

Synthetic method of 1-halo-1-acetyl cyclopropane

The invention discloses a synthetic method of 1-halo-1-acetyl cyclopropane. The synthetic method comprises the step of preparing a 1-halo-1-acetyl cyclopropane compound by taking 3,5-dihalo-pentanoneas a raw material and taking benzyl trimethyl ammonium chloride as a phase transfer catalyst under the action of alkali. The method disclosed by the invention is simple to operate, quick to react andhigh in yield, and solves the problem of quickly and efficiently synthesizing the 1-halo-1-acetyl cyclopropane compound. The synthetic method disclosed by the invention is primarily used for synthesizing organic molecules containing cyclopropane structural units.

Synthesis method for 1-chloro-1-acetyl cyclopropane

The invention discloses a synthesis method for 1-chloro-1-acetyl cyclopropane. The synthesis method is characterized in that 3,5-dichloro-2-pentanone is taken as a raw material, and solvent oil is taken as a solvent to react with a 20% sodium hydroxide aqueous solution under action of a phase transfer catalyst crown ether, fluid separation and distillation can be performed to separate out 1-chloro-1-acetyl cyclopropane. Solvent oil which does not react with a system is added as the solvent, so that reaction is performed in two phases, and therefore, contact time between a product and alkalineis reduced, product purity is improved, and the yield is improved more greatly. Raw material reaction speed can be increased by adding the phase transfer catalyst, separation speed of the product anda water phase in a post-treatment process is quickened by adding the solvent, and dwell time, in the reaction system, of raw materials and product is integrally shortened, so that side reaction is reduced, and selectivity is improved.