2189-61-9

Upstream product

• 67-56-1 methanol 
• 3320-87-4 isocyanic acid (3-nitro-phenyl) ester 
• 3532-31-8 3-nitrobenzoyl azide 
• 33322-43-9 3-nitro-benzoic acid bromoamide 
• 124-41-4 sodium methylate 
• 79-22-1 methyl chloroformate 
• 99-09-2 3-nitro-aniline 
• 99-65-0 meta-dinitrobenzene 
• 201230-82-2 carbon monoxide 
• 198763-88-1 1,1-diisopropyl-3-(3-nitrophenyl)urea 

Downstream Products

• 99-09-2 3-nitro-aniline 
• 6464-98-8 methyl 3-(aminophenyl)carbamate 

Relevant academic research and scientific papers

Palladium-catalyzed carbonylation of amines: Switchable approaches to carbamates and N,N′-disubstituted ureas

Switchable access to carbamates and ureas has been developed by solvent control palladium-catalyzed carbonylation of aromatic amines under an atmosphere of carbon monoxide. A variety of N-phenylcarbamates and N,N′- diphenylureas was easily synthesized in good to excellent yields from readily available aromatic amines under mild conditions. Copyright

Synthesis of aryl urea derivatives from aryl amines and aryl isocyanates

The present study describes the synthesis of novel diaryl urea derivatives derived from aryl amine and aryl isocyanates. The synthesized compounds are analogs of sorafenib [4-[4-[[[4-chloro-3-(trifluoromethyl)phenyl]amino]carbonyl] amino]phenoxy]-N-methylpyridine-2- carboxamide] having potential antiproliferative activity.

Effect of successive increase in alcohol chains on reaction with isocyanates and isothiocyanates

The reaction of isocyanates and isothiocyanates with long-chain alcohols, e.g. n-hexanol, n-heptanol and n-octanol, exclusively gave N-aryl-O-alkyl carbamates, while N-aryl-O-alkyl carbamates were formed along with symmetrical 1,3-disubstituted ureas and thioureas when the same reactions were carried out with small-chain alcohols at room temperature without using any solvent.

Hindered ureas as masked isocyanates: Facile carbamoylation of nucleophiles under neutral conditions

Bigger is better: Sterically hindered dialkyl ureas undergo nucleophilic substitution at dramatically faster rates than their less hindered counterparts (see scheme). Steric decompression upon the formation of an intermediate isocyanate can explain this c

Polymer-immobilized gold catalysts for the efficient and clean syntheses of carbamates and symmetric ureas by oxidative carbonylation of aniline and its derivatives

A series of highly efficient polymer-immobilized gold catalysts were prepared for the oxidative carbonylation of aniline and its derivatives to obtain carbamates and symmetric ureas in a clean, simple, solvent-free, and obtainable product-ready way. TEM showed that the average gold particle size of fresh catalyst was less than 10 nm.

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.

Herbicidal ureido containing carbanilates

Novel compounds and their herbicidal use having the formula STR1 wherein A is selected from the group STR2

Meta-bifunctional benzenes and herbicidal compositions

Meta-bifunctional of the general formula EQU1 wherein A is selected from the groups EQU2 These compounds possess herbicidal activity.