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

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

Uses

Used in Pharmaceutical Industry:
Ethanone, 1-(1-chlorocyclopropyl)is utilized as an intermediate in the synthesis of pharmaceuticals for its ability to contribute to the formation of complex molecular structures that can exhibit therapeutic properties.
Used in Pesticide Industry:
In the pesticide industry, Ethanone, 1-(1-chlorocyclopropyl)serves as a key intermediate, playing a crucial role in the development of compounds that help control, repel, or kill pests.
Used as a Reagent in Chemical Reactions:
Ethanone, 1-(1-chlorocyclopropyl)is employed as a reagent in various chemical reactions, facilitating specific transformations that are essential for the synthesis of target molecules.
Used as a Solvent in Various Industries:
Ethanone, 1-(1-chlorocyclopropyl)also functions as a solvent in a range of industries, providing a medium for dissolving other substances to enable processes such as extraction, purification, and chemical synthesis.
However, due to its toxic and irritating nature, Ethanone, 1-(1-chlorocyclopropyl)requires careful handling and adherence to stringent safety measures to mitigate potential health and environmental risks.

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

Upstream product

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

Synthesis of 1-chloro-1-acetylcyclopropane through a micro-reactor method

The invention relates to the field of synthesis of a prothioconazole intermediate synthesis, and particularly relates to synthesis of 1-chloro-1-acetylcyclopropane through a micro-reactor method. According to the method, tetraethyl ammonium chloride is adopted as a phase transfer catalyst, sodium hydroxide is adopted as a nucleophilic reagent, dichloromethane is adopted as a solvent, reaction rawmaterials are reacted in a reaction plate of a micro-reactor, reaction conditions are mild, reaction time is short, and a safety coefficient is high. After-treatment is simple, and the 1-chloro-1-acetylcyclopropane is prepared through a water washing step, a drying step, and the like. Solvent removal is not needed, thus reducing loss of a target product in an after-treatment process. The final yield is higher than 95%, purity is higher than 98%, and the method is suitable for industrial production.

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.

Improved method for synthesizing 1-acetyl-1-chlorocyclopropane

The invention discloses an improved method for synthesizing 1-acetyl-1-chlorocyclopropane. The method uses 3,5-dichloro-2,2-pentanone as a raw material for heating for reaction in an inorganic base and an organic solvent. By use of optimized reaction conditions, a product is synthesized and purified by distillation. By adopting the method, the production price of the product is reduced, generationof a waste solvent is reduced, and environment is not polluted. In addition, the distillation process is simple in operation and easy to operate, can be widely used in industrial production, and is conducive to the industrialization of the product.

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.

Preparation method for 1-acetyl-1-chloro-cyclopropane

The invention discloses a novel preparation process for preparing 1-acetyl-1-chloro-cyclopropane by using a micro flow field reactor, and belongs to the technical field of organic synthesis application. In the micro flow field reactor, 3,5-dichloro-2-pentanone and liquid caustic soda are used as main raw materials; and in the presence of a catalyst, 3,5-dichloro-2-pentanone is subjected to cycling reaction by virtue of short standing time to obtain a reaction product. Reaction raw materials are pre-heated in the micro flow field reactor, subjected to mixing reaction and cooled; and the reaction product is simply separated and distilled to obtain the 1- acetyl-1-chloro-cyclopropane. The novel preparation process has higher safety, is simple and convenient to operate, and can be used for continuously producing 1-acetyl-1-chloro-cyclopropane with a high yield.

Method of preparing 1-acetyl-1-chlorocyclopropane

The present invention provides a method of preparing 1-acetyl-1-chlorocyclopropane from 1,3 dichloro-2-pentanone by reaction with base in the presence of a phase transfer catalyst. The reaction may be run in the presence or absence of an organic solvent and in a continuous or batch process.