208711-58-4

Basic information

• Product Name: 3(2H)-Benzofuranone, O-methyloxime
• Synonyms: 3(2H)-Benzofuranone, O-methyloxime
• CAS NO: 208711-58-4
• Molecular Formula: C₉H₉NO₂
• Molecular Weight: 163.17
• Mol File: 208711-58-4.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 252.4±43.0 °C(Predicted)
• Appearance: /
• Density: 1.18±0.1 g/cm3(Predicted)
• CAS DataBase Reference: 3(2H)-Benzofuranone, O-methyloxime(CAS DataBase Reference)
• NIST Chemistry Reference: 3(2H)-Benzofuranone, O-methyloxime(208711-58-4)
• EPA Substance Registry System: 3(2H)-Benzofuranone, O-methyloxime(208711-58-4)

Safety Data

• Hazardous Substances Data: 208711-58-4(Hazardous Substances Data)

Upstream product

• 7169-34-8 3-oxo-2,3-dihydrobenzo[b]furan 
• 593-56-6 N-methoxylamine hydrochloride 
• 6280-80-4 2-Formylphenoxyacetic acid 
• 119-36-8 methyl salicylate 
• 22511-42-8 methyl 2-(2-ethoxy-2-oxoethoxy)benzoate 
• 93680-80-9 benzofuran-3-yl acetate 
• 635-53-0 (2-carboxyphenoxy)acetic acid 
• 82415-84-7 benzofuran-3(2H)-one oxime 
• 77-78-1 dimethyl sulfate 

Downstream Products

• 169153-14-4 (E)-(5,6-dihydro-[1,4,2]dioxazin-3-yl)-(2-hydroxyphenyl)-methanone O-methyloxime 
• 169153-13-3 E-(5,6-dihydro-[1,4,2]dioxazin-3-yl)-(2-hydroxy-phenyl)-methanone O-methyl-oxime 

Relevant articles and documents

PROCESS FOR PREPARING FLUOXASTROBIN

A process for preparing fluoxastrobin, including: (i) reacting benzofuran-3(2H)-one O-methyl oxime (10) with an alkyl nitrite in the presence of an acid to form (3E)-2,3-benzofuran-dione O3-methyl dioxime (11A) as a predominant isomer; (ii) reacting(3E)-2,3-benzofuran-dione O3-methyl dioxime (11A) with 2-haloethanol to form (3E)-benzofuran-2,3-dione O2-(2-hydroxyethyl) O3-methyl dioxime (12A); and (iii) reacting(3E)-benzofuran-2,3-dione O2-(2-hydroxyethyl) O3-methyl dioxime (12A) with a base to form (E)-(5,6-dihydro-1,4,2-dioxazin-3-yl)(2-hydroxyphenyl)methanone O-methyl oxime (13) (iv) reacting a 4,6-di-halo-5-fluoro-pyrimidine (5), wherein X1 is halogen, with (E)-(5,6-dihydro-1,4,2-dioxazin-3-yl)(2-hydroxyphenyl)methanone O-methyl oxime (13), in the presence of a solvent and optionally in the presence of a base, to form an (E)-(2-((6-halo-5-fluoropyrimidin-4-yl)oxy)phenyl)(5,6-dihydro-1,4,2-dioxazin-3-yl)methanone O-methyl oxime (14): (v) reacting the (E)-(2-((6-halo-5-fluoropyrimidin-4-yl)oxy)phenyl)(5,6-dihydro-1,4,2-dioxazin-3-yl)methanone O-methyl oxime (14) with 2-chlorophenol, in the presence of a solvent and optionally in the presence of a base, to form fluoxastrobin:.

Process for preparing 3-(1-hydroxphenyl-1-alkoximinomethyl)dioxazines

The present invention relates to a novel process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines which are known as intermediates for preparing compounds having fungicidal properties (WO 95-04728). Furthermore, the invention relates to nove