38542-71-1

Upstream product

• 110-86-1 pyridine 
• 80-48-8 methyl p-toluene sulfonate 

Downstream Products

• 7680-73-1 N-methylpyridinium chloride 
• 295363-12-1 C₆H₈N⁽¹⁺⁾*C₇H₇O₃S^(1-)*C₃₆H₃₆O₆ 
• 13249-97-3 2,4-dimethyl-1-[(4-methylphenyl)sulfonyl]benzene 
• 599-66-6 bis(4-methylphenyl) sulfone 
• 41908-97-8 o-tolyl-p-tolyl sulfone 
• 13249-99-5 α-naphthyl p-methylphenyl sulphone 
• 13250-06-1 2-(p-tolylsulfonyl)naphthalene 
• 640-57-3 phenyltolylsulfone 
• 5184-71-4 4-methylphenyl-4-chlorophenyl sulfone 
• 107624-65-7 o-chlorophenyl p-tolyl sulfone 
• 5184-70-3 1-bromo-4-tosylbenzene 
• 244263-64-7 2-bromophenyl 4'-tolyl sulfone 
• 28361-44-6 1,2-dimethyl-4-tosylbenzene 
• 1816-96-2 (2,5-dimethylphenyl)tolylsulfone 

Relevant academic research and scientific papers

N-methylpyridinium tosylate catalysed green synthesis, x-ray studies and antimicrobial activities of novel (E)-3-amino-2-(e)-(3, 4-dihydronaphthalen-1(2 H)-Ylidene)hydrazono)thiazolidin-4-ones

3,4-Dihydro-2H-naphthalen-1-ones 1,on reaction with thiocarbohydrazide, afforded monothiocarbohydrazones 2, which, on condensation with chloroacetic acid in the presence of an ionic liquid and bromotrimethylsilane furnish (E)-3-amino-2-(E)-(3,4-dihydronap

Substituted 4-thiazolidinones under solvent free conditions

Condensation of thiosemicarbazones 2 derived from 1-tetralones ( 1 ) with chloroacetic acid in presence of N -methylpyridinium tosylate (an ionic liquid) yields 2-substituted- 4-thiazolidinones 3 . The reaction of 2 with α-halo carbonyl compounds at room

Ionic liquid-mediated facile synthesis and antimicrobial study of thiazolo [2,3-b]benzo[h]quinazolines and thiazino[2,3-b] benzo-[h]quinazolines

8-Methoxy-4-phenyl-3,4,5,6-tetrahydrobenzo[h]quinazoline-2(1H)-thione, obtained by the condensation of 2-benzylidene-6-methoxy-3,4-dihydronapthalene- 1(2H)-one with thiourea, on reaction with chloroacetic acid and 3-chloropropanoic acid in the presence of the ionic liquid N-methylpyridinium tosylate furnishes 3-methoxy-7-phenyl-7,10-dihydro-5H- benzo[h]thiazolo[2,3-b] quinazoline-9(6H)-one and 3-methoxy-7-phenyl-5,6,10,11-tetrahydro- benzo[h][1,3]thiazino[2,3-b]quinazoline-9(7H)-one. Further, condensation of the thione with 1,2-dibromoethane and 1,3-dibromopropane yields 3-methoxy-7-phenyl- 6,7,9,10-tetrahydro-5 H-benzo[h]thiazolo[2,3-b]quinazoline and 3-methoxy-7-phenyl-5,6,7,9,10,11-hexahydrobenzo [h][1,3]thiazino[2,3-b] quinazoline respectively. Arylidene derivatives have been obtained by two routes. The structures of the cyclized compounds have been established on the basis of elemental analysis and spectroscopic data. The synthesized compounds were screened for antimicrobial activity. Some of the compounds showed promising antimicrobial activities. Copyright

Sulfonylation of aromatic compounds with methyl p-toluenesulfonate as a sulfonylating precursor

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.

Ionic liquid-mediated, one-pot synthesis for 4-thiazolidinones

A convenient one-pot, three-component cyclocondensation mediated by ionic liquid for obtaining 2,3-disubstituted-4-thiazolidinones with excellent yields is reported. Copyright Taylor & Francis Group, LLC.

Monotopic and heteroditopic calix[4]arene receptors as hosts for pyridinium and viologen ion pairs: A solution and solid-state study

The binding efficiency of a series of monotopic (1-2) and heteroditopic (3-4) calix[4]arene-based receptors has been evaluated in chloroform solution toward N-methylpyridinium ion pairs using NMR and UV/vis spectroscopic techniques. These experiments provided evidence that, due to a positive cooperative effect, the presence of a phenylurea H-bond donor group on the upper rim of the calix[4]arene macrocycle increases the recognition abilities of the heteroditopic receptors by up to two orders of magnitude with respect to the monotopic receptors. The heteroditopic receptors are also able to form 2:1 host-guest inclusion complexes with dimethylviologen salts both in low polarity solvents and in the solid state. These complexes are stabilized through the cooperation of weak (CH-π and cation-π) and strong (hydrogen bonding) intramolecular interactions between the binding domains of the calix[4]arene host and the two ions of the guest ion pair.

Cleavage of the epimines of 1,6-anhydrohexoses with fluoride anion

Aziridine ring cleavage reactions of five N-nosylepimines (2-6) having D-talo, D-galacto, D-manno, and D-allo configurations with potassium hydrogendifluoride under various reaction conditions have been performed. The cleavage regioselectively afforded di