- 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.
- Adams, Richard D.,Captain, Burjor,Smith Jr., Jack L.
-
-
- Thiones as reactive intermediates in condensations of diketones with aromatics mediated by tetraphosphorus decasulfide
-
Phenanthrene-9,10-quinone and P4S10 react with phenols on being heated to give oxathiins, e.g., 9 the dioxin 22, ethers, e.g., 14 arylphenanthrenols, e.g., 10 and furanols, e.g., 17 in addition to sulfides, e.g., 26 and disulfides, e
- Morrison, Brian J.,Musgrave, Oliver C.
-
p. 2725 - 2744
(2007/10/03)
-
- 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.
- Okuma, Kentaro,Kuge, Seiji,Koga, Yuji,Shioji, Kosei,Wakita, Hisanobu,Machiguchi, Takahisa
-
p. 1519 - 1522
(2007/10/03)
-
- Novel Syntheses of Decacyclene by Deoxygenating Cyclotrimerisation of Acenaphthenequinone with Zero-valent Titanium or Phosphorus Pentasulfide
-
Decacyclene (2) was obtained in 15-21% yield by reaction of acenaphthenequinone (6) with bis(η6-biphenyl)titanium(0) (9) in toluene or diglyme at 110°C and in 18% yield by reaction of 6 with phosphorus pentasulfide in boiling toluene. The new reactions are used to attempt the conversion of 3,8-dibromoacenaphthenequinone (7) to 3,4,9,10,15,16-hexabromodecacyclene (3) which is considered to serve as a suitable precursor for the bowl-shaped polycyclic aromatic hydrocarbon C 36H12 (1).
- Zimmermann, Klaus,Haenel, Matthias W.
-
p. 609 - 611
(2007/10/03)
-
- 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
- Do, Quang Tho,Elothmani, Driss,Simonet, Jacques,Guillanton, Georges Le
-
p. 789 - 793
(2007/10/02)
-
- THE SYNTHESIS OF ACENAPHTHOTHIADIAZOLE AND PHENANTHROTHIADIAZOLEc
-
Acenaphthothiadiazole 3 and phenanthro thiadiazole 4 have been synthesized by the direct reaction of Lawesson's reagent 5 with the respective α-diazoketones 1 and 2.
- Levinson, Matthew I.,Cava, Michael P.
-
p. 241 - 243
(2007/10/02)
-