Results 21 to 30 of about 30,449 (185)
Supramolecular interactions in a 1:1 co-crystal of acridine and 3-chlorothiophene-2-carboxylic acid
Acta Crystallographica Section E: Crystallographic Communications, 2016 In the title co-crystal, C5H3ClO2S·C13H9N, the components interact with each other via an O—H...N hydrogen bond. Acridine–acridine stacking, thiophene–thiophene stacking and acridine–thiophene C—H...π interactions also occur in the crystal.
Olakkandiyil Prajina +2 more
doaj +1 more source
Acta Chimica Slovenica, 2022 2-Amino-6-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile (3) was prepared from the reaction of cyclohexane-1,4-dione with elemental sulfur and malononitrile in 1,4-dioxane and triethylamine as catalyst.
Rafat Milad Mohareb +1 more
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, 2016 General, Efficient Route to Thiophene-1-Oxides and Well-Defined, Mixed Thiophene-Thiophene-1-Oxide ...
Biwang Jiang (1841434) +1 more
core +1 more source
Thiophene-based bent-shaped luminescent liquid crystals: synthesis and characterisation
, 2017 Five new bent-shaped compounds based on the 2,5-disubstituted thiophene central core were successfully synthesised. The lengths of the rigid centres as well as the degree of conjugation were varied by coupling benzene, naphthalene and biphenyl systems to
B. Behramand (3604367) +3 more
core +1 more source
Communications ChemistryFriedel-Crafts alkylation reactions are generally accepted to proceed by an electrophilic aromatic substitution (SEAr) mechanism. Here, we observed that MCM-22 exhibited a high activity in the alkylation of thiophene with styrene at temperatures near ...
Xiaopan Li +6 more
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(E,E)-1,5-Di-2-thienylpenta-1,4-dien-3-one
Acta Crystallographica Section E, 2008 In the title compound, C13H10OS2, the dihedral angle between the thiophene rings is 14.3 (1)°. The molecular structure is stabilized by C—H...π interactions between a thiophene H atom and an adjacent thiophene ring, and by ...
S. SrimanNarayanan +4 more
doaj +1 more source
Molecules, 2023 The isosteric replacement of the benzene with thiophene ring is a chemical modification widely applied in medicinal chemistry. Several drugs containing the thiophene ring are marketed for treating various pathologies (osteoporosis, peripheral artery ...
Letizia Crocetti +4 more
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Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer
Advanced Functional Materials, EarlyView.Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero +12 more
wiley +1 more source
Halogen dance reactions on thiophene derivatives
Discover MoleculesDerivatives of thiophene play a significant role in the development of photoelectronic materials. Among the various modification methods for thiophene, the halogen dance reaction (HDR) represents an efficient strategy, as it addresses the challenge of ...
Ronghong Zhou, Sheng Zhang, Hua Wang
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Adsorptive Desulfurization of Liquid Fuels Using Na-Bentonite Adsorbents
مجلة النهرين للعلوم الهندسية, 2018 In this work, model fuel (Thiophene in hexane) was treated for sulfur removal by adsorptive desulfurization method using modified bentonite with sodium (Na-B) adsorbent. Batch and continuous mode were used in this study. Several operating parameters such
Fatma Dheif Ali
doaj +1 more source