51218-49-6

Basic information

• Product Name: Pretilachlor
• Synonyms: 2-Chloro-N-(2,6-diethylphenyl)-N-(2-propoxyethyl)acetamide;2-CHLORO-2',6'-DIETHYL-N-(2-PROPOXYETHYL)ACETANILIDE;RIFIT;SOFIT;SOLNET;PRETILACHLOR;Pretilchlor;2-chloro-n-(2,6-diethylphenyl)-n-(2-propoxyethyl)-acetamid
• CAS NO: 51218-49-6
• Molecular Formula: C₁₇H₂₆ClNO₂
• Molecular Weight: 311.85
• Product Categories: Agro-Chemicals;HERBICIDE
• Mol File: 51218-49-6.mol
• Article Data: 16

Chemical Properties

• Melting Point: 25°C
• Boiling Point: bp0.001 135°
• Flash Point: 221.1 °C
• Appearance: Colourless liquid
• Density: 1.0521 (rough estimate)
• Vapor Pressure: 5.2E-08mmHg at 25°C
• Refractive Index: nD20 1.5204
• Storage Temp.: 0-6°C
• PKA: 1.41±0.50(Predicted)
• Water Solubility: Insoluble in water
• Merck: 14,7740
• BRN: 2754162
• CAS DataBase Reference: Pretilachlor(CAS DataBase Reference)
• NIST Chemistry Reference: Pretilachlor(51218-49-6)
• EPA Substance Registry System: Pretilachlor(51218-49-6)

Safety Data

• Hazard Codes: Xi;N,N,Xi
• Statements: 38-50/53
• Safety Statements: 60-61
• RIDADR: UN 3082 9/PG 3
• WGK Germany: 2
• RTECS: AB5427000
• HazardClass: 9
• PackingGroup: III
• Hazardous Substances Data: 51218-49-6(Hazardous Substances Data)

Usage

Chemical Properties

Pale Yellow Oil

Uses

Different sources of media describe the Uses of 51218-49-6 differently. You can refer to the following data:
1. Pretilachlor is a chloroacetanalide herbicide. Pretilachlor is commonly used for weed control in wet seeded rice
2. Herbicide for use in rice paddys.

InChI:InChI=1/C17H26ClNO2/c1-4-11-21-12-10-19(16(20)13-18)17-14(5-2)8-7-9-15(17)6-3/h7-9H,4-6,10-13H2,1-3H3

Upstream product

• 579-66-8 2,6-diethylaniline 
• 2807-30-9 2-propoxyethanol 
• 79-04-9 chloroacetyl chloride 
• 75-36-5 acetyl chloride 
• 61874-13-3 N-(2-propoxyethyl)-2',6'-diethylaniline 

Relevant articles and documents

Synthesizing method for chloroacetamide compound

The invention discloses a synthesizing method for a chloroacetamide compound. In a reaction kettle, a secondary amine compound is dissolved in an organic solvent, the mixture is heated for reflux, chloroacetyl chloride is added into the mixture, a reflux reaction is conducted for 0.5-20 hours, and the chloroacetamide compound is obtained. According to the synthesizing method for the chloroacetamide compound, an acid binding agent is not used, discharging of wastewater in the after-treatment process is reduced, by keeping the reflux state of the system, hydrogen chloride gas generated from thereaction is exhausted out of the system and absorbed by water outside the system, high-purity hydrochloric acid is obtained, the waste is turned into wealth, the method comes up to the production standard of safety and environment protection, and discharging of waste gas, waste water and waste residues is reduced; according to the synthesizing method for the chloroacetamide compound, few operationsteps are utilized, the reaction speed is high, the product yield is high, the purity is high, the production cost is low, and the method is safe, friendly to the environment and suitable for industrial large-scale production.

Method used for preparing pretilachlor

The invention discloses a method used for preparing pretilachlor. The method comprises a step used for preparing pretilachlor. According to the method, ethylene glycol monopropyl ether is reacted with thionyl chloride so as to obtain chloric ether; chloric ether and aniline are subjected to condensation reaction so as to obtain a condensation product; the condensation product is subjected to rectification so as to obtain rectified N,N,N',N'-tetramethyl-2,2'-oxybis(ethylamine); and rectified N,N,N',N'-tetramethyl-2,2'-oxybis(ethylamine) is subjected to acylation so as to obtain pretilachlor. The method is capable of increasing production efficiency, reducing production cost, improving production environment, and increasing yield of pretilachlor obviously.

Synergistic herbicidal mixtures

PCT No. PCT/EP96/04935 Sec. 371 Date May 1, 1998 Sec. 102(e) Date May 1, 1998 PCT Filed Nov. 12, 1996 PCT Pub. No. WO97/17852 PCT Pub. Date May 22, 1997A synergistically active herbicidal composition which comprises, as active components, a mixture of 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile [Component (A)] and a herbicide selected from the group consisting of bentazone, molinate, daimuron, thiobencarb, butachlor, pretilachlor, dimepiperate, fenoxaprop-ethyl, clomeprop, cinmethylin, bromobutide, quinclorac, mefenacet, pyrazosulfuron-ethyl, esprocarb, cinosulfuron, thenylchlor, cumyluron, MK 243, naproanilide, anilofos, benfuresate, bifenox, CH-900, MCPA, nitrofen, oxadiazon, pendimethalin, simetryn, sulcotrione (ICIA0051), trifluralin, piperophos, pyributicarb, ethoxysulfuron, bensulfuronmethyl, pyrazolate, pyrazoxyfen, benzofenap, cyclosulfamuron, cyhalofop-butyl, NBA-061, azimsulfuron, propanil or imazosulfuron [Component (B)] and which are suitable for controlling undesirable plants in rice cultivation.