38568-60-4

Upstream product

• 456-27-9 4-nitrobenzenediazonium tetrafluoroborate 
• 824-79-3 sodium 4-methylbenzenesulfinate 
• 100-01-6 4-nitro-aniline 

Downstream Products

• 43022-52-2 4-nitro-selenoanisol 
• 79424-71-8 (4-nitrophenyl)(phenyl)tellane 
• 105230-58-8 butyl 4-nitrophenyl selenide 
• 636-98-6 p-nitrobenzene iodide 
• 98-95-3 nitrobenzene 

Relevant academic research and scientific papers

Reactions of arylazosulfones with the conjugate bases of (tert-butoxycarbonyl)methyl and tosylmethyl isocyanide. Synthesis of substituted 1-arylimidazoles

The reactions of arylazosulfones 1 (ArN = NSO2Ar') with the potassium salts of (tert-butoxycarbonyl)methyl 2 and tosylmethyl isocyanide 3 in DMSO afford 4,5-bis(tert-butoxycarbonyl)- 4 and 4-tosyl-1-arylimidazoles 5, respectively. Yields of imidazoles 4 and 5 vary from moderate to excellent depending on the nature both of Ar in 1 and of the nucleophile (2 or 3) employed. A comparison of the results obtained with those relevant to the reactions of the same nucleophiles with nitrosobenzene in analogous experimental conditions provides useful mechanistic indications on the transformation of 1 to 4 or 5.