203-42-9

Basic information

• Product Name: 1,8-DINAPHTHYLENETHIOPHENE
• Synonyms: 1,8-DINAPHTHYLENETHIOPHENE;DIACENAPHTHO[1,2-B:1',2'-D]THIOPHENE;DIACENAPHTHYLENO[1,2-B:1',2'-D]THIOPHENE;2,3:4,5-Di(1,8-naphthylene)thiophene;Nsc4725
• CAS NO: 203-42-9
• Molecular Formula: C₂₄H₁₂S
• Molecular Weight: 332.42
• EINECS: 205-904-0
• Mol File: 203-42-9.mol
• Article Data: 6

Chemical Properties

• Melting Point: 278-280 °C
• Boiling Point: 577.9 °C at 760 mmHg
• Flash Point: 231 °C
• Appearance: /
• Density: 1.484 g/cm³
• CAS DataBase Reference: 1,8-DINAPHTHYLENETHIOPHENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,8-DINAPHTHYLENETHIOPHENE(203-42-9)
• EPA Substance Registry System: 1,8-DINAPHTHYLENETHIOPHENE(203-42-9)

Safety Data

• Hazardous Substances Data: 203-42-9(Hazardous Substances Data)

Upstream product

• 2008-77-7 2-diazoacenaphthen-1-one 
• 208-96-8 acenaphthylene 
• 82-86-0 acenaphthene quinone 
• 213598-87-9 C₂₄H₁₄S₂ 
• 83-32-9 acenaphthene 
• 668988-07-6 diacenaphtho[1,2-c:1',2'-e]-1,2-dithiin 
• 668988-08-7 Pt(1,5-cyclooctadiene)(C₂₄H₁₂S₂) 

Downstream Products

• 7213-61-8 4,5-diphenyl-acenaphtho[1,2-j]fluoranthene 
• 191-48-0 decacyclene 
• 193-21-5 acenaphtho[1,2-j]fluoranthene 
• 81-84-5 1,8-Naphthalic anhydride 

Relevant articles and documents

Diacenaphtho[1,2-c:1′,2′-e]-1,2-dithiin: Synthesis, structure and reactivity

Diacenaphtho[1,2-c:1′,2′-e]-1,2-dithiin 2 was synthesized in 23% yield by the reaction of acenaphthylene with elemental sulfur at 120 °C. This reaction also afforded either diacenaphtho[1,2-b:1′,2′-d]thiophene 1 or diacenaphtho[1,2-b:1′,2′-e]- dihydro[e]-1,4-dithiin 3 depending on the reaction time. Compound 2 was desulfurized and converted to 1 under UV-vis irradiation in a benzene solution. Reaction of 2 with Pt(COD)2 yielded the complex Pt(COD)(C24H12S2) 4 (COD=1,5-cyclooctadiene) by insertion of a Pt(COD) group into the S-S bond of 2. When heated, 4 was desulfurized and converted to 1 by elimination of a (COD)PtS grouping. Compounds 1-4 were characterized crystallographically.

Facile formation of cyclic polysulfides by a new generation method for diatomic sulfur

A new generation of diatomic sulfur (1) has been achieved in a remarkably simple process by treatment of elemental sulfur with sodium hydride in the presence of phase-transfer catalysts. This facile generation of 1 has been trapped with olefins, diene, and triene to give cycloadducts as the form of cyclic sulfides in high yields.

Utilisations synthetiques d'une electrode soluble au soufre. IV. Creation de l'enchainement C-S-C a partir d'hydrocarbures aromatiques, d'heterocycles et d'amines aromatiques

Use of a sacrificial sulfur electrode in electroorganic chemistry.IV.Formation of the C-S-C bond from aromatic hydrocarbons, heterocycles and aromatic amines.The electrophile S2+ was prepared in organic media by oxidation of a carbon-sulfur electrode.This species can react with aromatic hydrocarbons, heterocycles and aromatic amines to produce organic monosulfides. carbon-sulfur electrode / sacrificial electrode / sulfur cation / organic sulfide / electrophilic substitution