25184-73-0

Basic information

• Product Name: butyl 2-(2,4-dichlorophenoxy)propionate
• Synonyms: butyl 2-(2,4-dichlorophenoxy)propionate;2-(2,4-Dichlorophenoxy)propanoic acid butyl ester;Einecs 246-719-5
• CAS NO: 25184-73-0
• Molecular Formula: C13H16Cl2O3
• Molecular Weight: 291.17034
• EINECS: 246-719-5
• Mol File: 25184-73-0.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 353.3°Cat760mmHg
• Flash Point: 131.3°C
• Appearance: /
• Density: 1.212g/cm³
• Vapor Pressure: 3.63E-05mmHg at 25°C
• Refractive Index: 1.513
• CAS DataBase Reference: butyl 2-(2,4-dichlorophenoxy)propionate(CAS DataBase Reference)
• NIST Chemistry Reference: butyl 2-(2,4-dichlorophenoxy)propionate(25184-73-0)
• EPA Substance Registry System: butyl 2-(2,4-dichlorophenoxy)propionate(25184-73-0)

Safety Data

• Hazardous Substances Data: 25184-73-0(Hazardous Substances Data)

Usage

InChI:InChI=1/C13H16Cl2O3/c1-3-4-7-17-13(16)9(2)18-12-6-5-10(14)8-11(12)15/h5-6,8-9H,3-4,7H2,1-2H3

Upstream product

• 58048-37-6 2-(2,4-dichloro-phenoxy)-propionyl chloride 
• 71-36-3 butan-1-ol 
• 120-36-5 2-(2,4-dichlorophenoxy)propionic acid 

Relevant articles and documents

Preparation method of chlorophenoxycarboxylic ester

The invention provides a preparation method of chlorophenoxycarboxylic ester, wherein the preparation method includes the following steps: carrying out 2-site and/or 4-site selective chlorination reaction of phenoxycarboxylic ester with a chlorinating agent under the action of a catalyst A and a catalyst B to obtain chlorophenoxycarboxylic ester, wherein the catalyst A is Lewis acid, and the catalyst B is C5-22 thiazoles, isothiazoles and thiophenes or halogenated derivatives thereof. The method effectively improves the chlorination selectivity and avoids loss of effective ingredients by redesigning of the process route and fine screening of the catalysts and the chlorinating agent. The content of the obtained chlorophenoxycarboxylic ester can reach 98.5% or more and the yield can reach 99% or more.

A [...] ester preparation method (by machine translation)

The invention provides a method for preparing [...] ester, including: the phenoxy carboxylic acid ester compounds, supported Lewis acid catalyst, sulfur-containing polymer mixed with the chlorinating agent, the selective chlorination reaction, to obtain [...] ester. Compared with the prior art, this invention uses benzene oxygen suo acid ester compound as a raw material obtained by the selective chlorination of [...] ester, simple preparation method, to avoid having the bad smell of the Fe0 production and use, thereby fundamentally preventing the substance to the dioxin generation; at the same time supported Lewis acid and sulfur-containing polymer common as catalyst, through the two cooperative positioning function, the selectivity of the dichloride to improve, and the two can through the filter recovery and re-use, the use of the recycling of the catalyst; furthermore the invention avoids the losses of the active ingredient, the extraction rate of the product, reduces energy consumption, prevent high COD, the generation of high salt waste water, three waste output has been largely reduced. (by machine translation)