70264-20-9

Upstream product

• 455-88-9 5-nitro-2-fluorotoluene 
• 108-98-5 thiophenol 
• 7149-70-4 2-bromo-5-nitrotoluene 
• 5326-38-5 2-iodo-5-nitrotoluene 
• 930-69-8 sodium thiophenolate 

Downstream Products

• 183723-74-2 2-methyl-4-nitrodiphenyl sulfone 
• 1425187-92-3 2-methyl-4-nitrophenyl(phenyl)sulfoxide 
• 1206189-69-6 C₇H₆⁽¹⁸⁾FNO₂ 
• 936125-89-2 (2-methyl-4-aminophenyl)phenylsulfide 

Relevant academic research and scientific papers

SULFONIUM SALT, PHOTOACID GENERATOR, AND PHOTOSENSITIVE COMPOSITION

A novel sulfonium salt having high sensitivity with respect to active energy rays, a photoacid generator including the sulfonium salt, and a photosensitive composition containing the photoacid generator. The sulfonium salt is represented by formula (a1). In the formula, R1 and R2 each independently represent the group that is represented by formula (a2) or an alkyl group that may be substituted by a halogen atom, R1 and R2 are bonded to each other and may form a ring with the sulfur atom within the formula, R3 is the group represented by formula (a3) or the group represented by formula (a4), A1 represents S or the like, X? represents a monovalent anion, and R1 and R2 are not both an alkyl group which may be substituted with a halogen atom. In formulas (a2) to (a4), the ring Z1 represents an aromatic hydrocarbon ring, R4, R6, R9, and R10 each represents a specific monovalent group, R5, R7, and R8 each represents a specific divalent group, A2 and A3 each represents S or the like, m1 represents an integer of 0 or more, and n1 and n2 each represent 0 or more.

No-carrier-added [18F]fluoroarenes from the radiofluorination of diaryl sulfoxides

No-carrier-added [18F]fluoroarenes were synthesized through the radiofluorination of diaryl sulfoxides with [18F]fluoride ion. Diaryl sulfoxides bearing a para electron-withdrawing substituent readily gave the corresponding 4-[18F]fluoroarenes in high RCYs. This process broadens the scope for preparing novel 18F-labeling synthons and PET radiotracers.

Palladium nanoparticles supported on silica diphenylphosphinite as efficient catalyst for C-O and C-S arylation of aryl halides

Silica diphenylphosphinite (SDPP) can be easily obtained through direct phosphorylation of silica gel. Further reaction of SDPP with Pd(II) produces nano Pd(0)/SDPP. This nano Pd(0) catalyst exhibits excellent reactivity for the C-O and C-S arylation of different aryl iodides, bromides and chloride with phenols and thiophenols. This heterogeneous catalyst shows excellent recyclability and can be easily recovered and reused for several runs. Copyright

Microwave-assisted Ullmann-Buchwald C-S bond formation using a copper(I) catalyst and trans-cyclohexane-1,2-diol as ligand

Microwave irradiation of a thiophenol or alkyl thiol (1 equiv.) and an aryl halide (1 equiv.) in 2-propanol at 120°C for three hours in the presence of K2CO3 (2 equiv.) as base using copper(I) iodide as catalyst (5 mol%) and trans-cyclohexane-1,2-diol (2 equiv.) as ligand provides a rapid and convenient method for C-S bond formation. The process is most efficient using thiophenol and aryl iodide precursors, both of which may contain electron-donating and electronwithdrawing groups, to give the corresponding diaryl sulfide in good to excellent yield. ARKAT-USA, Inc.