398151-69-4

Upstream product

• 91394-73-9 N-(3-bromophenyl)benzenesulfonamide 
• 75-03-6 ethyl iodide 
• 591-19-5 m-Bromoaniline 
• 64-67-5 diethyl sulfate 
• 591-18-4 1-Bromo-3-iodobenzene 
• 75-04-7 ethylamine 
• 554-68-7 triethylamine hydrochloride 
• 121-44-8 triethylamine 

Downstream Products

• 1100508-91-5 (3-bromophenyl)ethylformamide 
• 161327-24-8 2-bromo-4-(diethylamino) benzaldehyde 
• 53142-19-1 3-bromo-bisethyl-aminobenzene 

Relevant academic research and scientific papers

Alkylation of Aromatic Amines with Trialkyl Amines Catalyzed by a Defined Iridium Complex with a 2-Hydroxypyridylmethylene Fragment

Six Cp?Ir complexes containing NN-bitentate chelate ligands [Cp?IrCl(C5H4CH2C5H3OH)][Cl] (1), [Cp?IrCl(C5H4CH2C5H3O)] (2), [Cp?IrCl(C5H4C5H3OH)] [Cl] (3), [Cp?IrCl(C5H4CH2C5H4)][Cl] (4), [Cp?IrCl(CH3OC5H3CH2C5H3OCH3)][Cl] (5), and [Cp?IrCl(CH3OC5H3CH2C5H3OH)][Cl] (6) were synthesized and characterized. Complex 1 could be transformed to 2 when reacted with NaOtBu or NEt3 via -OH deprotonation. These six complexes were tested as catalysts for mono-N-alkylation of amines with trialkyl amines, and complex 1 exhibited highest activity. The coupling reactions proceed under air condition, with 1 mol % catalyst loading without extra base in methanol at 120 °C and can be further accelerated by adding NR3·HCl.

Alkylsilyl Peroxides as Alkylating Agents in the Copper-Catalyzed Selective Mono-N-Alkylation of Primary Amides and Arylamines

The copper-catalyzed selective mono-N-alkylation of primary amides or arylamines using alkylsilyl peroxides as alkylating agents is reported. The reaction proceeds under mild reaction conditions and exhibits a broad substrate scope with respect to the alkylsilyl peroxides, as well as to the primary amides and arylamines. Mechanistic studies suggest that the present reaction should proceed through a free-radical process that includes alkyl radicals generated from the alkylsilyl peroxides.

Synthetic studies connected with the preparation of N-[3-(3- cyanopyrazolo[1,5-a]pyrimidin-5-yl)phenyl]-N-ethylacetamide, a zaleplon regioisomer

N-[3-(3-Cyanopyrazolo[1,5-a]pyrimidin-5-yl)phenyl]-N-ethyl-acetamide, a principal impurity of zaleplon, is prepared by Suzuki-Miyaura cross coupling reaction of the corresponding boronic acid and/or boronates with 5-chloropyrazolo[1,5-a]pyrimidin-3-carbonitrile (7). Various methods of preparation of both components are described, as well as approaches based on the final modification of the 5-(3-aminophenyl)-pyrazolo[1,5-a]pyrimidine-3- carbonitrile moiety prepared by Suzuki-Miyaura cross coupling. All the prepared compounds were unambiguouesly identified by NMR techniques. Spectral characteristics (IR, UV, MS) of these compounds are also given.

NOVEL COMPOUNDS

The invention provides novel hydantoin derivatives; processes for their preparation; pharmaceutical compositions containing them; a process for preparing the pharmaceutical compositions; and their use in therapy.

NOVEL BIAROMATIC COMPOUNDS THAT ACTIVATE PPAR TYPE RECEPTORS, AND USE THEREOF IN COSMETIC OR PHARMACEUTICAL COMPOSITIONS

The invention relates to novel biaromatic compounds that correspond to the general formula (I) and also to the method for preparing them, and to their use in pharmaceutical compositions for use in human or veterinary medicine (in dermatology, and also in the field of cardiovascular diseases, immune diseases and/or lipid metabolism-related diseases), or alternatively in cosmetic compositions.

Biaromatic compound activators of PPARy-type receptors

The invention relates to novel biaromatic compounds which correspond to the general formula (I) below: and also to the method for preparing them and their use in pharmaceutical compositions intended for use in human or veterinary medicine (in dermatology, and also in the field of cardiovascular diseases, immune diseases and/or diseases associated with lipid metabolism), or alternatively in cosmetic compositions.