55709-45-0

Basic information

• Product Name: 1,4-Bis(4-methylphenylthio)benzene
• Synonyms: 1,4-Bis(4-methylphenylthio)benzene
• CAS NO: 55709-45-0
• Molecular Formula: C₂₀H₁₈S₂
• Molecular Weight: 322.49
• Mol File: 55709-45-0.mol
• Article Data: 7

Chemical Properties

• Melting Point: 99 °C
• Boiling Point: 285 °C(Press: 14 Torr)
• Appearance: /
• Density: 1.19±0.1 g/cm3(Predicted)
• CAS DataBase Reference: 1,4-Bis(4-methylphenylthio)benzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Bis(4-methylphenylthio)benzene(55709-45-0)
• EPA Substance Registry System: 1,4-Bis(4-methylphenylthio)benzene(55709-45-0)

Safety Data

• Hazardous Substances Data: 55709-45-0(Hazardous Substances Data)

Usage

Physical state

Colorless solid

Solubility

Insoluble in water, soluble in organic solvents

Uses

a. Building block in the synthesis of organic materials and pharmaceuticals
b. Cross-linking agent in the production of polymers
c. Precursor for the synthesis of dyes and pigments
d. Potential use in organic electronic devices
e. Photoinitiator in photopolymerization processes

Toxicity

Potentially toxic

Environmental impact

Potential environmental impact

Handling and disposal

Proper handling and disposal necessary to prevent harm to human health and the environment

Upstream product

• 106-46-7 para-dichlorobenzene 
• 10486-08-5 sodium p-thiocresolate 
• 624-38-4 para-diiodobenzene 
• 103-19-5 di(p-tolyl) disulfide 
• 106-37-6 1.4-dibromobenzene 
• 106-45-6 para-thiocresol 
• 540-36-3 para-difluorobenzene 
• 18620-02-5 (4-bromophenyl)magnesium bromide 
• 873-77-8 (4-chlorphenyl)magnesium bromide 
• 2362-50-7 thianthrene-5-oxide 
• 589-87-7 1,4-bromoiodobenzene 

Downstream Products

• 1258780-21-0 C₂₀H₁₈O₂S₂ 

Relevant articles and documents

Palladium nanoparticles immobilized on a nano-silica triazine dendritic polymer: a recyclable and sustainable nanoreactor for C-S cross-coupling

Dendrimers are of great interest due to their special structural topology and chemical versatility. Owing to their properties, dendrimers have found practical applications in catalytic processes as efficient nanoreactors. Therefore, we herein report an environmentally attractive strategy and highly efficient route for the synthesis of a wide variety of diaryl sulfides using palladium nanoparticles immobilized on a nano-silica triazine dendritic polymer (Pdnp-nSTDP) as a nanoreactor. In this manner, different diaryl or aryl heteroaryl sulfides and bis(aryl/heteroarylthio)benzene/anthracene/pyridine derivatives were preparedviaC-S cross-coupling reactions of aryl halides with diaryl/diheteroaryl disulfides under thermal conditions and microwave irradiation. The catalyst could be easily recovered and reused several times without any significant loss of its activity.

Ligand-free highly effective iron/copper co-catalyzed formation of dimeric aryl ethers or sulfides

Highly selective coupling of diiodoarenes with phenols or phenthiols can be performed by using a low-cost, benign character and readily available Fe/Cu catalytic system in the absence of ligands. It is noteworthy that the desired dimeric aryl ethers or sulfides could be obtained in high yields by coupling between diiodoarenes and phenols, or diphenols with aryl iodides. The Royal Society of Chemistry 2011.

p-Phenylene sulfide oligomers and their properties. Ar-S couplings mediated by copper or by fluorine substitutions

A series of monodisperse p-phenylene sulfide oligomers were efficiently synthesized by using a bidirectional growth. A strategy combining Cu-catalyzed Ar-S couplings for small oligomers and fluorine aromatic substitutions by aryl thiolates for longer ones was put forward. The latter method is superior to Cu-catalyzed reactions for longer oligomers. Fluorine chemistry brings some new advantages such as solubility and reactivity. Qualitative crystallinity studies were reported according to the oligomer size and the functional series, by using a microscope equipped with a heating stage and a camera.