Abstract: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, haloben… Show more
“…This conclusion is also in agreement with the results obtained for the sulfonylation of mesitylene in the presence of metallic catalysts such as FeCl 3 [102] (5 %) (Eq. 50).…”
Section: Friedel±crafts Acylation Of Aromatic Etherssupporting
“…This conclusion is also in agreement with the results obtained for the sulfonylation of mesitylene in the presence of metallic catalysts such as FeCl 3 [102] (5 %) (Eq. 50).…”
Section: Friedel±crafts Acylation Of Aromatic Etherssupporting
“…Dubac and co-workers found a practical method using high-temperature microwave conditions where only 5-10 mol% of FeCl 3 (relative to the sulfonyl chloride) sufficed for complete reactions to occur [201]. A number of arenes including alkylbenzenes, anisole, and halobenzenes were sulfonylated using a number of different arylsulfonyl chlorides.…”
“…Recently, several new catalytic systems have been developed for such sulfonylation reactions. These systems include use of cation-exchanged zeolites (ZSM-5, Y, β) [125], Fe(III)-exchanged montmorillonite clay [126,127], Bi(III) triflate [128], triflic acid (TfOH)-Bi(III) halide [129] and microwave irradiation in the presence of a small quantity of certain metal salts [130][131][132].…”
Section: Regioselective Methanesulfonylation Of Aromatic Compoundsmentioning
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