Results 11 to 20 of about 3,267 (118)

[2.2]Paracyclophane derivatives containing tetrathiafulvalene moieties [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2015
The synthesis of [2.2]paracyclophane derivatives containing tetrathiafulvalene units has been accomplished by the coupling reaction of 4-([2.2]paracyclophan-4-yl)-1,3-dithiol-2-thione in the presence of trimethylphosphite.
Laura G. Sarbu   +4 more
doaj   +3 more sources

Synthesis of Thieno[2,3-d]-1,3-dithiol-2-thiones from Thieno[2,3-d]-1,2,3-thiadiazoles: Matryoshka-type autoclave for high-temperature, high-pressure thermolysis microscale reactions [PDF]

open access: yesMolecules, 2002
Thieno[2,3-d]-1,2,3-thiadiazoles (1) react with carbon disulfide in a "Matryoshkatype" double compartment autoclave [1] to yield thieno[2,3-d]-1,3-dithiol-2-thiones (2).
Ving J. Lee   +3 more
doaj   +3 more sources

An Improved Synthetic Method for Sensitive Iodine Containing Tricyclic Flavonoids [PDF]

open access: yesMolecules, 2022
The synthesis of new iodine containing synthetic tricyclic flavonoids is reported. Due to the sensitivity of the precursors to the heat and acidic conditions required for the ring closure of the 1,3-dithiolium core, a new cyclization method has been ...
Mihail Lucian Birsa, Laura G. Sarbu
doaj   +2 more sources

An Approach to Paracyclophane-Based Tetrathiafulvalenes: Synthesis and Characterization of a Pseudo-Geminal [2.2]Paracyclophane 1,3-Dithia-2-Thione [PDF]

open access: yesMolecules, 2020
The synthesis of paracyclophane-based tetrathiafulvalene precursors is described in the context of the importance of these compounds in the field of material chemistry.
Lucian G. Bahrin   +4 more
doaj   +2 more sources

One-Dimensional Polycyclic Aromatic Hydrocarbons Incorporating Multiple Dithiafulvene Units-Novel Multi-Redox and Electrochromic Systems. [PDF]

open access: yesAngew Chem Int Ed Engl
Planar polycyclic aromatic hydrocarbons (PAHs) incorporating three or four dithiafulvene (DTF) units were synthesized via Horner–Wadsworth–Emmons reactions to create large π‐conjugated redox‐active frameworks. These molecules display strong intermolecular associations and distinct odd–even redox behavior, enabling formation of mixed‐valence and radical‐
Rindom C   +3 more
europepmc   +3 more sources

Planar, Twisted, or Curved Extended Tetrathiafulvalenes with Polycyclic Aromatic Hydrocarbon Cores Featuring Five-Membered Rings. [PDF]

open access: yesChem Asian J
Tetrathiafulvalenes (TTFs) extended by polycyclic aromatic hydrocarbons (PAHs) constitute a class of redox‐active chromophores. This review summarizes PAH‐extended TTFs for which the PAH core features five‐membered rings together with six‐, seven‐, and/or eight‐membered rings.
Pedersen VBR, Nielsen MB.
europepmc   +2 more sources

Bis-1,3-dithiolium Salts as Initiators for the Cationic Polylnerization of Vinyl Monomers [PDF]

open access: yesPolymer Journal, 1996
Top of pageAbstract Keywords: Bis-1,3-dithiolium Salts; Radical Cation; Cationic Polymerization; Initiator; Vinyl ...
Eri Yoshida, Yoshida Eri
exaly   +2 more sources

Tricyclic flavonoids with 1,3-dithiolium substructure [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2012
Lucian G Bahrin, Henning Hopf
exaly   +2 more sources

Reaction of 1,4,2-Dithiazolium and 1,3-Dithiolium Salts with Malononitrile [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1989
Abstract The reaction of 5-substituted 3-phenyl-1,4,2-dithiazolium salts with malononitrile gave not only 5-dicyanomethylene-3-phenyl-1,4,2-dithiazole and an isothiazole derivative, but 4-amino-5-cyano-2-(1-cyano-2-dialkylamino-2-mercaptovinyl)-6-phenylpyrimidines (6) and a butadiene derivative, depending on substituents at C-5 and bases
Katsumi Yonemoto   +2 more
openaire   +1 more source

Tri(hetero)substituted Carbonium Ions. XI. A Novel Synthetic Route to 2-Dialkylamino-4-alkyl-1,3-dithiolium Salts [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1976
Abstract Pyrolysis of 2-dialkylamino-4-(α-bromoalkyl)-1,3-dithiolanylium bromides (2) readily prepared by bromination of the β,γ-unsaturated dithiocarbamates (1) affords 2-dialkylamino-4-alkyl-1,3-dithiolium salts (3) in good yields, providing a useful way to prepare dithiolium salts.
Takeshi Nakai   +2 more
openaire   +1 more source

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