100989-95-5

Basic information

• Product Name: 3,4-DI-NAPHTHALEN-2-YL-2,5-DIHYDRO-THIOPHENE
• Synonyms: 3,4-DI-NAPHTHALEN-2-YL-2,5-DIHYDRO-THIOPHENE;2,5-Dihydro-3,4-di-2-naphthalenylthiophene
• CAS NO: 100989-95-5
• Molecular Formula: C₂₄H₁₈S
• Molecular Weight: 338.46
• Mol File: 100989-95-5.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 556.1±50.0 °C(Predicted)
• Appearance: /
• Density: 1.234±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 3,4-DI-NAPHTHALEN-2-YL-2,5-DIHYDRO-THIOPHENE(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-DI-NAPHTHALEN-2-YL-2,5-DIHYDRO-THIOPHENE(100989-95-5)
• EPA Substance Registry System: 3,4-DI-NAPHTHALEN-2-YL-2,5-DIHYDRO-THIOPHENE(100989-95-5)

Safety Data

• Hazardous Substances Data: 100989-95-5(Hazardous Substances Data)

Upstream product

• 93-08-3 methyl 2-naphthyl ketone 
• 613-54-7 2-Bromo-2'-acetonaphthone 
• 23080-25-3 1,5-di-2-naphthyl-3-thiapentane-1,5-dione 

Downstream Products

• 951384-62-6 2,5-dibromo-3,4-bis(naphthalen-2-yl)thiophene 
• 100990-31-6 3,4-Di-naphthalen-2-yl-thiophene 
• 124089-48-1 C₃₀H₂₂S 
• 124089-44-7 C₃₀H₂₂S 

Relevant articles and documents

One-pot oxidation and bromination of 3,4-diaryl-2,5-dihydrothiophenes using Br2: Synthesis and application of 3,4-diaryl-2,5-dibromothiophenes

(Chemical Equation Presented) A class of 3,4-diaryl-2,5-dibromothiophenes (1b-5b) was synthesized by a one-pot reaction of 3,4-diaryl-2,5- dihydrothiophenes with Br2 reagent in excellent yield (83-92%). It was found that Br2 performed a double function (oxidation and bromination) during the conversion of 3,4-diaryl-2,5-dihydrothiophenes to 3,4-diaryl-2,5-dibromothiophenes. The application of 3,4-diaryl-2,5- dibromothiophenes used as building blocks was also investigated. Employing 3,4-diphenyl-2,5-dibromothiophene (1b) as a template, a class of 2,3,4,5-tetraarylthiophenes was prepared by the Suzuki coupling reaction. This provided a new and simple approach to the preparation of 2,3,4,5- tetraarylthiophenes.

GENERAL SYNTHESIS OF 2,5-DIHYDROTHIOPHENES (3-THIOLENES) FROM DIKETO SULFIDES

The intramolecular reductive coupling reaction of easily accesible diketo sulfides by a low-valent titanium reagent (prepared from titanium(IV) chloride and zinc powder) provides an efficient general synthesis of 2,5-dihydrothiophenes.