71283-80-2

Basic information

• Product Name: Fenoxaprop-p-ethyl
• Synonyms: FENOXAPROP-P-ETHYL;FENOVA(TM);(R)-FENOXAPROP-P-ETHYL;(R)-PUMA;WHIP SUPER;Propanoic acid, 2-4-(6-chloro-2-benzoxazolyl)oxyphenoxy-, ethyl ester, (2R)-;FENOXAPROP-P-ETHYL{ETHYL(R)-2-[4-(6-CHLORO-1,3-BENZOXAZOLE-2-YLOXY)PHENOXY]PROPICACID};(+)-Ethyl 2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy] propanoate
• CAS NO: 71283-80-2
• Molecular Formula: C18H16ClNO5
• Molecular Weight: 361.78
• Product Categories: HERBICIDE;Alpha sort;E-GAlphabetic;F;FA - FLEnvironmental Standards;Herbicides;MetabolitesPesticides&Metabolites;Pesticides&Metabolites;Phenoxy structure
• Mol File: 71283-80-2.mol
• Article Data: 5

Chemical Properties

• Melting Point: 79-84°C (lit.)
• Boiling Point: 477.5 °C at 760 mmHg
• Flash Point: 242.6 °C
• Appearance: /
• Density: 1.31 g/cm³
• Vapor Pressure: 3.71E-11mmHg at 25°C
• Refractive Index: 1.62
• Storage Temp.: 0-6°C
• PKA: -0.08±0.30(Predicted)
• Water Solubility: 705.4ug/L(temperature not stated)
• BRN: 8158010
• CAS DataBase Reference: Fenoxaprop-p-ethyl(CAS DataBase Reference)
• NIST Chemistry Reference: Fenoxaprop-p-ethyl(71283-80-2)
• EPA Substance Registry System: Fenoxaprop-p-ethyl(71283-80-2)

Safety Data

• Hazard Codes: N
• Statements: 50/53
• Safety Statements: 60-61
• RIDADR: UN3077 9/PG 3
• WGK Germany: 2
• Hazardous Substances Data: 71283-80-2(Hazardous Substances Data)

Usage

Chemical Properties

White powder

Uses

Postemergent herbicide.

InChI:InChI=1/C17H14ClNO5/c1-17(2,15(20)21)24-12-6-4-11(5-7-12)22-16-19-13-8-3-10(18)9-14(13)23-16/h3-9H,1-2H3,(H,20,21)

Upstream product

• 70217-01-5 4-(6-chlorobenzo[d]oxazol-2-yloxy)phenol 
• 63696-99-1 (S)-ethyl 2-(methylsulfonyloxy)propanoate 
• 3621-82-7 2,6-dichloro-1,3-benzoxazole 
• 64-17-5 ethanol 
• 94050-90-5 (R)-2-(4-hydroxyphenoxy)propionic acid 
• 28443-50-7 2-amino-5-chlorophenol 
• 7699-00-5 (R)-Ethyl lactate 
• 57057-80-4 ethyl (S)-2-[[(4-methylphenyl)sulfonyl]oxy]propanoate 
• 83261-05-6 (R)-ethyl O-bezenesulfonyl lactate 
• 71301-98-9 (R)-2-(4-hydroxyphenoxy)propionic acid ethyl ester 

Downstream Products

• 19932-84-4 6-chlorobenzo[d]oxazol-2(3H)-one 
• 71301-98-9 (R)-2-(4-hydroxyphenoxy)propionic acid ethyl ester 
• 256412-89-2 (2R)-2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]-N-(2-fluorophenyl)-N-methylpropanamide 

Relevant articles and documents

High-efficiency low-pollution fenoxaprop-p-ethyl production process

The invention discloses a high-efficiency and low-pollution production process of fenoxaprop-p-ethyl. The production process comprises the following specific steps: (1) preparing fenoxaprop-p-ethyl; S1, preparing sulfydryl-6-chlorobenzoxazole; S2, preparing 2,6-dichlorobenzoxazole; and S3, synthesizing the fenoxaprop-p-ethyl. According to the fenoxaprop-p-ethyl, fenoxaprop-p-ethyl is finally synthesized through preparation of sulfydryl-6-chlorobenzoxazole and preparation of 2,6-dichlorobenzoxazole, the technology is simple, operation is convenient, efficiency is high, the speed is high, the production cost is saved, the income is increased, and filter residues generated in the production process can be safely treated through the technology; the waste gas enters a waste gas treatment facility for treatment and is discharged after reaching the standard; and the wastewater is desalted, removed salt is washed and dried by methanol to serve as a byproduct, and evaporated condensate water enters a factory sewage treatment station to be treated, so that the aim of protecting the environment is fulfilled, and the functions of high efficiency and low pollution are achieved.

A new method for one-pot synthesis of aryloxyphenoxypropionate herbicides using 2,4,6-trichloro-1,3,5-triazine and (n-BU)4NI as a homogeneous catalyst

The one-pot reaction of halo-heterocycle, (R)-4-hydroxyphenoxy propionic acid and an alcohol, amine or sulfonamide is described as an efficient method for the synthesis of aryloxyphenoxy propionate hrerbicides by using 2,4,6-trichloro-1,3,5-triazine in the presence of (n-BU) 4NI, as a homogeneous catalyst under mild conditions. The present procedure offers several advantages, such as good yields, short reaction times and easy workup.

Herbicidal esters of D-1-(phenoxy-4-phenoxy)propionic acid

Optically active enantiomers of the formula I STR1 where R is a group of the formulae STR2 R1 and R2, among others, are halogen or CF3 and Z is a carboxyl, carboxylate, carboxylic acid ester, thioester, carbonamide, carboxylic acid anilide, carbohydrazide or thioamide group, are interesting herbicides the effect of which is considerably superior to that of the optically inactive racemates.