Diazoamino Coupling of a 4-Sulfobenzenediazonium Salt with Some Cyclic Amines
نویسندگان
چکیده
Preparation of several novel potassium salts of 4-substituted aminoazobenzenesulfonic acids by the simple and convenient reaction of insoluble 4-sulfobenzenediazonium chloride with some (hetero)cyclic amines of various ring sizes is reported. The compounds obtained have shown potential antiinflammatory activity in biological testing.
منابع مشابه
Nano Silica/ HIO4 as a Green and Reusable Catalyst for Synthesis of 2-Naphthol Azo Dyes under Grinding Conditions
Nanosilica periodic acid (nano-SPIA) is found to be a new, powerful, and reusable heterogeneous catalyst for the rapid synthesis of 2-naphtholazo dyes via diazotization of aromatic amines and followsazo coupling with 2-naphthol under solvent-free conditions at room temperature by grinding. Eco-friendly, heterogeneous reaction conditions, high stability of diazonium salt, simple experimental pro...
متن کاملPreparation of Ag2S Nanoparticles and using as Catalyst for the A3-coupling (Aldehyde-Amine-Alkyne) Reaction
Microwave assisted facile one-step approach was adopted to prepare mono-dispersed silver sulfide nanoparticles. The structures of the synthesized Ag2S nanoparticles were confirmed by Fourier-transform infrared spectroscopy (FT-IR), diffuse reflectance UV-vis spectroscopy (DRS), X-ray diffractometer (XRD), energy dispersive X-ray analysis (EDX) and transmission electron microscope (TEM). The pre...
متن کاملHigh Efficiency Coupling of Diazonium Ions to Proteins and Amino Acids.
Azoproteins, obtained by the coupling of diazonium ions with the histidyl, tyrosyl, and lysyl groups of proteins, have continued to be materials of utility since their early investigation (1). The ease with which proteins can be modified by this procedure, the variety of aromatic amines that can be used, and the correlation that can be made between the chemical structure of the introduced group...
متن کاملSynthesis of Symmetrical Triaryl Amines by Nano-CuO Catalyzed Buchwald-Hartwig Cross-coupling Reaction: NH2-Thiadiazole as a New N-source
The one-pot synthesis of symmetrical triaryl amines using aryl halides and 5-Methyl-1,3,4-Thiadiazole-2-Amine as a nitrogen-transfer reagent is reported. Copper oxide nanoparticles that does not require the presence of any additional ligand, improved rate and facility of the synthesis of triaryl amines. The introduction of a new N-source, using green solvents PEG/H2O, normal atmospheric conditi...
متن کاملOrganocatalytic Enantioselective Cross-Dehydrogenative Coupling of N-Carbamoyl Cyclic Amines with Aldehydes.
The existing catalytic enantioselective cross-dehydrogenative coupling of cyclic amines predominantly focused on reactive N-aryl tetrahydroisoquinolines, which typically suffered from limited substrate generality and synthetic utility, and required the use of metal catalyst. Herein, a metal-free catalytic enantioselective cross-dehydrogenative coupling of N-carbamoyl cyclic amines and aldehydes...
متن کامل