67984-20-7

Basic information

• Product Name: 3,3'-DIMETHYL-2,2'-BITHIOPHENYL
• Synonyms: 3,3'-DIMETHYL-2,2'-BITHIOPHENYL;3,3-DIMETHYL-2,2''-BITHIOPHENY;3,3'-Dimethyl-2,2'-bithiophenyl,98%;3-methyl-2-(3-methylthiophen-2-yl)thiophene
• CAS NO: 67984-20-7
• Molecular Formula: C₁₀H₁₀S₂
• Molecular Weight: 194.32
• Mol File: 67984-20-7.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 244.9 °C at 760 mmHg
• Flash Point: 73.3 °C
• Appearance: /
• Density: 1.169 g/cm³
• Refractive Index: 1.618-1.62
• Storage Temp.: Refrigerator (+4°C)
• CAS DataBase Reference: 3,3'-DIMETHYL-2,2'-BITHIOPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3'-DIMETHYL-2,2'-BITHIOPHENYL(67984-20-7)
• EPA Substance Registry System: 3,3'-DIMETHYL-2,2'-BITHIOPHENYL(67984-20-7)

Safety Data

• Hazard Codes: Xn
• Statements: 22-36
• Safety Statements: 24/25
• Hazardous Substances Data: 67984-20-7(Hazardous Substances Data)

Upstream product

• 126507-27-5 3-methyl-2-thienylmagnesium iodide 
• 143203-11-6 5-chloro-2-iodo-3-phenylthiophene 

Downstream Products

• 1015256-07-1 3,3’-dimethyl-5-(2,4,6-trimethylphenyl)-2,2’-bithiophene 

Relevant articles and documents

Synthesis of unsymmetrical 2,3-diaryl- and 2,4-diarylthiophenes starting from 2,5-dichlorothiophene

Unsymmetrically substituted 2,4-diaryl- and 2,3-diarylthiophenes were synthesized from 2,5-dichlorothiophene via 4-aryl-2-chlorothiophenes in two and four steps including Ni-mediated cross-coupling, respectively. Aluminum chloride-catalyzed reaction of 3-aryl-2-chlorothiophenes with some aromatic ethers unexpectedly led to the formation of the corresponding 2,4-isomers.