4930-04-5

Basic information

• Product Name: ETHYL 4-(2,6-DIFLUOROPHENYL)-4-OXOBUTYRATE
• Synonyms: ETHYL 4-(2,6-DIFLUOROPHENYL)-4-OXOBUTYRATE
• CAS NO: 4930-04-5
• Molecular Formula: C12H12F2O3
• Molecular Weight: 224.216
• Mol File: 4930-04-5.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: ETHYL 4-(2,6-DIFLUOROPHENYL)-4-OXOBUTYRATE(CAS DataBase Reference)
• NIST Chemistry Reference: ETHYL 4-(2,6-DIFLUOROPHENYL)-4-OXOBUTYRATE(4930-04-5)
• EPA Substance Registry System: ETHYL 4-(2,6-DIFLUOROPHENYL)-4-OXOBUTYRATE(4930-04-5)

Safety Data

• Hazardous Substances Data: 4930-04-5(Hazardous Substances Data)

Upstream product

• 67-56-1 methanol 
• 123-61-5 1,3-Phenylene diisocyanate 
• 99-65-0 meta-dinitrobenzene 
• 108-45-2 m-phenylenediamine 
• 616-38-6 carbonic acid dimethyl ester 
• 2597-44-6 formyl radical 
• 201230-82-2 carbon monoxide 

Downstream Products

• 148619-85-6 N,N'-(4-nitro-m-phenylene)-bis-carbamic acid dimethyl ester 
• 123-61-5 1,3-Phenylene diisocyanate 

Relevant articles and documents

Method for preparing methyl carbamate by catalyzing methanol conversion

The invention discloses a method for preparing methyl carbamate by catalyzing methanol conversion. The method specifically comprises: taking oxygen or air as an oxygen source, taking organic amine as a nitrogen source, taking methanol as a solvent, in the function of a catalyst, allowing methanol to undergo ammoxidation to generate methanamide, and allowing methanamide to undergo in-situ oxidation esterification to obtain methyl carbamate. The method is high in raw material utilization rate. The catalyst is cheap and available, is easy to recycle, can be reused, and is easy to separate from the product. The obtained methyl carbamate is excellent in performance and high in purity. The technical route is of great significance in releasing excess production capacity of methanol and reducing the dependence on highly toxic chemicals.

ONE-POT PRODUCTION OF CARBAMATES USING SOLID CATALYSTS

The invention relates to the production of carbamates in a single reactor (one-pot) using solid catalysts, involving the reaction between at least one nitro compound, an organic carbonate of formula (OR)(OR′)C═O, a gas selected from hydrogen gas and a mixture of gases containing hydrogen and hydrogen precursor compounds, and a catalyst that has at least one metallic oxide and can also contain an element of groups 8, 9, 10 and 11 of the periodical table. The carbonates obtained can be transformed into their corresponding isocyanates.

Reductive carbonylation of aromatic dinitro compounds with a palladium(phenanthroline)2(triflate)2 catalyst and an aromatic carboxylic acid as cocatalyst

Reductive carbonylation of aromatic dinitro compounds to afford valuable dicarbamates proceeds at reasonable rates and with high selectivities under the influence of a Pd(phenanthroline)2(triflate)2 catalyst in combination with an aromatic carboxylic acid as cocatalyst.