21919-60-8

Basic information

• Product Name: 4-[4-(methoxycarbonyl)phenoxy]-3-nitrobenzoic acid methyl ester
• Synonyms: 4-[4-(methoxycarbonyl)phenoxy]-3-nitrobenzoic acid methyl ester
• CAS NO: 21919-60-8
• Molecular Weight: 331.282
• Mol File: 21919-60-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-[4-(methoxycarbonyl)phenoxy]-3-nitrobenzoic acid methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-[4-(methoxycarbonyl)phenoxy]-3-nitrobenzoic acid methyl ester(21919-60-8)
• EPA Substance Registry System: 4-[4-(methoxycarbonyl)phenoxy]-3-nitrobenzoic acid methyl ester(21919-60-8)

Safety Data

• Hazardous Substances Data: 21919-60-8(Hazardous Substances Data)

Upstream product

• 14387-30-5 dimethyl 4,4'-oxydibenzoate 
• 2215-89-6 oxybis(benzoic acid) 

Downstream Products

• 227275-18-5 dimethyl 3-(4-octadecanoylaminobenzoylamino)-4,4'-oxydibenzoate 
• 227275-10-7 dimethyl 3-(4-nitrobenzoylamino)-4,4'-oxydibenzoate 
• 21919-61-9 4,4'-Dimethoxycarbonyl-2-amino-diphenylether 

Relevant articles and documents

Synthesis of 10,10-Dioxo-10λ6-Phenoxathiin Derivatives by Reaction of 4,4′-Oxydibenzoic Acid with Sulfur-Containing Electrophiles

A method for the synthesis of 4-substituted derivatives of 10,10-dioxo-10λ6-phenoxathiin-2,8-dicarboxylic acid by the reaction of 4,4′-oxydibenzoic acid with strong sulfur-containing electrophiles was developed. The interaction with chlorosulfonic acid or oleum was shown to produce a phenoxathiin ring by initial substitution of hydrogen at positions 2 and 2′ followed by intramolecular cyclization to 4-chlorosulfonyl(sulfo)-10,10-dioxo-10λ6-phenoxathiin-2,8-dicarboxylic acid. Using an analogous approach, methods for the synthesis of 4-nitro- and 4,6-dinitro-10,10-dioxo-10λ6-phenoxathiin-2,8-di-carboxylic acids were developed.