241-34-9

Basic information

• Product Name: 2,2':5',2''-Bisepithio-1,1':4',1''-terbenzene
• Synonyms: 2,2':5',2''-Bisepithio-1,1':4',1''-terbenzene;Benzo[1,2-b:4,5-b']bis[1]benzothiophene
• CAS NO: 241-34-9
• Molecular Formula: C₁₈H₁₀S₂
• Molecular Weight: 290.4
• Mol File: 241-34-9.mol
• Article Data: 7

Chemical Properties

• Melting Point: 314 °C(Solv: benzene (71-43-2))
• Boiling Point: 522.2±23.0 °C(Predicted)
• Appearance: /
• Density: 1.417±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 2,2':5',2''-Bisepithio-1,1':4',1''-terbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2':5',2''-Bisepithio-1,1':4',1''-terbenzene(241-34-9)
• EPA Substance Registry System: 2,2':5',2''-Bisepithio-1,1':4',1''-terbenzene(241-34-9)

Safety Data

• Hazardous Substances Data: 241-34-9(Hazardous Substances Data)

Upstream product

• 92-94-4 [1,1';4',1'']terphenyl 
• 113037-59-5 1,2,3,4,7,8,9,10-octahydro-dibenzo[d,d']benzo[1,2-b;4,5-b']dithiophene 
• 109508-95-4 6,12-dichloro-1,2,3,4,7,8,9,10-octahydro-dibenzo[d,d']benzo[1,2-b;4,5-b']dithiophene 
• 32090-20-3 2,2'-p-phenylenedimercapto-bis-cyclohexanone 
• 111527-06-1 2,2'-(2,5-dichloro-p-phenylenedimercapto)-bis-cyclohexanone 
• 3459-94-7 1,4-bis(phenylthio)benzene 
• 126218-83-5 1-bromo-2-(methylsulfinyl)benzene 
• 4612-26-4 1,4-Phenyldiboronic acid 
• 189095-25-8 1,4-difluoro-2,5-diiodobenzene 
• 244205-40-1 (2-bromophenyl)boronic acid 

Relevant articles and documents

Benzo[1,2-b:4,5-b′]bis[b]benzothiophene as solution processible organic semiconductor for field-effect transistors

Coplanar benzo[1,2-b:4,5-b′]bis[b]benzothiophenes (1a, 1b) for the application in organic field-effect transistors were synthesized by a simple two-step procedure involving triflic acid induced ring-closure reaction; such solution processed devices show a hole mobility of up to 0.01 cm2 V-1 s-1. The Royal Society of Chemistry.

Facile Synthesis of Thienoacenes via Transition-Metal-Free Ladderization

Herein, we report a facile transition-metal-free approach to sulfur-containing heteroacenes from fluorinated oligophenylenes. Unlike most existing methods, the presented approach is not restricted to simple dibenzothiophene derivatives and thus appears to

Copper-Catalyzed Double S-Arylation of Potassium Thioacetate with Dibenziodolium Triflates: Facile Synthesis of Unsymmetrical Dibenzothiophenes

Much interest has been paid to cyclic diaryliodonium salts as bis(electrophile)s in transition-metal-catalyzed annulation reactions to produce polycyclic (hetero)aromatic hydrocarbons. Herein, we report that dibenziodolium triflates smoothly react with potassium thioacetate in the presence of CuCl2in THF or DMSO at 100–110 °C to afford the corresponding dibenzothiophenes in good-to-high yields. The coupling reaction tolerates reactive functional groups such as chloro and cyano and serves as a facile and reliable method for the synthesis of unsymmetrical dibenzothiophenes.

Synthesis of dibenzothiophenes by pd-catalyzed dual C-H activation from diaryl sulfides

Palladium-catalyzed dual C-H functionalization of diaryl sulfides to form dibenzothiophenes (DBTs) by oxidative dehydrogenative cyclization is reported. This protocol afforded various DBTs in moderate to good yields with tolerance of a wide variety of substrates. Benzo[1,2-b:4,5-b]bis[b]benzothiophene was successfully synthesized by this method, which was used as an organic semiconductor for field-effect transistors.