21729-72-6

Upstream product

• 16271-33-3 2,4-Dichlorobenzenesulfonyl chloride 
• 71-43-2 benzene 
• 133745-75-2 N-fluorobis(benzenesulfon)imide 
• 541-73-1 1,3-Dichlorobenzene 
• 88284-48-4 2-(trimethylsilyl)phenyl trifluoromethanesulfonate 
• 98-09-9 benzenesulfonyl chloride 

Downstream Products

• 61945-91-3 4-benzenesulfonyl-resorcinol 

Relevant academic research and scientific papers

Metal-free sulfonylation of arenes with: N -fluorobenzenesulfonimide via cleavage of S-N bonds: expeditious synthesis of diarylsulfones

A novel metal-free sulfonylation of arenes with N-fluorobenzenesulfonimide (NFSI) toward the synthesis of diarylsulfones has been developed. The reaction represents a rare example of sulfonylation reaction using NFSI as an efficient sulfonyl donor and the first example of acid-mediated sulfonylation of unactivated arenes with NFSI via selective cleavage of S-N bonds. This protocol provides a concise approach for the construction of pharmaceutically and biologically important diarylsulfones. Applications in the functionalization of natural products (e.g., β-estradiol) and in the synthesis of a key intermediate to an inhibitor of farnesyl-protein transferase, as well as in the gram-scale synthesis of the EPAC2 antagonist, are demonstrated. This journal is

Synthesis method of diaryl sulfone compound (by machine translation)

The invention discloses a synthesis method of a diaryl sulfone compound, wherein the, reaction equation of the series of N - diarylsulfone compounds is prepared by (NFSI) sulfonylating the aromatic hydrocarbon under the non-metal condition with the source of the, benzenesulfonyl group as the benzenesulfonyl group, and: the reaction equation is as follows. STR3, #, STR2, #, STR2, #, #, #, # STR2. # STR2# STR2# STR2, , STR2 STR2 STR2 N - # (NFSI) STR2# STR2 STR2 STR2, #, # STR1 STR8# STR2 STR1 STR8. AlCl R3 , FeCl3 The other precious, and metals of, other metals such as the precious metals of, the other noble metals not cause the environment, to pollute, the environment and are suitable for the concise and high-efficiency synthesis of. the diarylsulfone compounds, and have good application prospects in the fields of organic synthesis, drug research and development and the like. (by machine translation)

Metal-free, high yielding synthesis of unsymmetrical biaryl, bi(heteroaryl), aryl vinyl, aryl alkyl sulfones via coupling of aryne with sulfinic acid salts

Here, we report a metal-free, high yielding method for the synthesis of unsymmetrical biaryl sulfones via coupling of aryne with sulfinic acid salts. The optimized condition also works efficiently for bi(heteroaryl), aryl vinyl and aryl alkyl sulfones. The present method took comparatively shorter reaction times and has good functional group compatibility. This journal is

Acylation and related reactions under microwaves. 4. Sulfonylation reactions of aromatics

Solvent-free sulfonylation of benzene and its activated or deactivated derivatives were carried out under microwave (MW) irradiation and a catalytic amount of iron(III) chloride, which, under these conditions, is more, active than other metallic salts. With more reactive and/or nonvolatile reagents (anisole, xylenes, mesitylene) expeditious conditions (short reaction time at constant MW power without control of the temperature) were used. With less reactive and/or low-boiling reagents (benzene, toluene, halobenzenes), the rise in temperature and the increase of reaction time were controlled either by sequential MW irradiation or by a temperature order. It was shown that MWs cause preferential interactions with polar species present in the reaction, especially the aryl sulfone and its FeCl3-complexed form. A MW nonthermal effect was not observed when identical temperature gradients were produced by classical heating and MW irradiation, and if reaction temperature was strictly controlled.