244263-64-7Relevant academic research and scientific papers
Sulfonylation of aromatic compounds with methyl p-toluenesulfonate as a sulfonylating precursor
Khodaei,Nazari
, p. 507 - 512 (2013/02/22)
We have developed Friedel-Crafts (FC) sulfonylation of aromatic compounds with methyl p-toluenesulfonate as a sulfonylating precursor. In this procedure, methyl p-toluenesulfonate was treated and activated with pyridine to produce N-methylpyridinium p-toluenesulfonate as a sulfonylation reagent. Reactivity of this salt for the sulfonylation of mesitylene was investigated in the presence of three different promoters, such as triflic anhydride, dimethylsulfide ditriflate, and triphenylphosphine ditriflate (TPPD). All of the promoters show chemoselectivity and among them, TPPD presents a chemoselectivity in FC sulfonylation. Iranian Chemical Society 2012.
Polystyrene supported Al(OTf)3: A stable, efficient, selective, and reusable catalyst for sulfonylation of arenes with sulfonic acids
Boroujeni, Kaveh Parvanak
experimental part, p. 1887 - 1890 (2010/11/18)
Cross-linked polystyrene supported aluminium triflate (Ps-Al(OTf) 3) was found to be an efficient and chemoselective heterogeneous Lewis acid catalyst for the direct conversion of arenes to sulfones using sulfonic acids as sulfonylating agents. The solid acid catalyst is stable (as a bench top catalyst) and can be easily recovered and reused without appreciable change in its efficiency.
Highly selective catalytic Friedel-Crafts sulfonylation of aromatic compounds using a FeCl3-based ionic liquid
Bahrami, Kiumars,Khodei, Mohammad Mehdi,Shahbazi, Fomeida
, p. 3931 - 3934 (2008/09/21)
Friedel-Crafts sulfonylation of aromatic compounds was carried out using FeCl3-based ionic liquid. These liquids serve as efficient media as well as Lewis acid catalyst.
Direct sulfonylation of aromatic rings with aryl or alkyl sulfonic acid using supported P2O5/Al2O3
Hajipour, Abdol R.,Zarei, Amin,Khazdooz, Leila,Pourmousavi, Seied A.,Mirjalili, Bi Bi F.,Ruoho
, p. 2029 - 2034 (2007/10/03)
Direct sulfonylation of aromatic rings with aryl or alkyl sulfonic acid supported P2O5/Al2O3 (w/w 50%) under heterogeneous conditions in short reaction time and high yields. Copyright Taylor & Francis Inc.
An efficient method for aromatic Friedel-Crafts alkylation, acylation, benzoylation, and sulfonylation reactions
Singh, Ravi P,Kamble, Rajesh M,Chandra, Kusum L,Saravanan,Singh, Vinod K
, p. 241 - 247 (2007/10/03)
Aromatic electrophilic substitution reactions such as alkylation, acylation, benzoylation, and sulfonylation were studied in the presence of a catalytic amount of Cu(OTf)2 and Sn(OTf)2. Cu(OTf)2 was very efficient for alkylation, acylation, and benzoylation reactions. However, in case of sulfonylation reactions, Sn(OTf)2 gave better results.
Synthesis and Crystal Structure of a New C2-Symmetric Chiral Bis-sulfoxide Ligand and Its Palladium(II) Complex
Tokunoh, Ryosuke,Sodeoka, Mikiko,Aoe, Kei-ichi,Shibasaki, Masakatsu
, p. 8035 - 8038 (2007/10/02)
A new chiral bis-sulfoxide ligand (S,S)-1,2-bis(p-tolylsulfinyl)benzene (BTSB), which possesses S,S-bidentate chelating donor atoms on an aromatic ring, was synthesized.Pd, Rh, and Ru readily gave adducts with this ligand.The crystal structure of PdCl2bt
