Results 11 to 20 of about 39,833 (328)

COMPUTER SIMULATION OF π – π INTERACTIONS OF TETRATHIOPHENE MOLECULES

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
The properties of the supramolecular organization of conjugated polymers strongly affect the mobility of charge carriers and, consequently, the properties of produced electronic devices based on them.
V.G. Alekseev, P.O. Baburkin, S.-H. Tung, P.V. Komarov   +3 more
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Iridium-Catalyzed Silylation of Five-Membered Heteroarenes: High Sterically Derived Selectivity from a Pyridyl-Imidazoline Ligand. [PDF]

, 2020
The steric effects of substituents on five-membered rings are less pronounced than those on six-membered rings because of the difference in bond angles. Thus, the regioselectivities of reactions of five-membered heteroarenes that occur with selectivities
Hartwig, John F, Karmel, Caleb, Kharitonova, Elena V, Rubel, Camille Z   +3 more
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Electronic Correlations in Oligo-acene and -thiophene Organic Molecular Crystals [PDF]

, 2004
From first principles calculations we determine the Coulomb interaction between two holes on oligo-acene and -thiophene molecules in a crystal, as a function of the oligomer length.
Alberto F. Morpurgo, E. A. Silinsh, Geert Brocks, J. van den Brink, Jeroen van den Brink, M. J.  S. Dewar, R. W. G. Wyckoff   +6 more
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Synthesis of Some Thienopyrimidine Derivatives

Molecules, 2006
Thioxothienopyrimidinones, alkylthio- and arylalkylthiothienopyrimidinones, thienopyrimidinones, thienopyrimidines a thienopyrimidinedione and a thienotriazolo- pyrimidinone were prepared from 2-amino-3-carboethoxy-4,5-disubstituted thiophenes and 2 ...
Hassan M. Al-Hazimi, Hanan A. S. Al-Blowy, Fatma E. M. El-Baih   +2 more
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Synthesis and Anti‐Inflammatory Activity of 2‐Amino‐4,5,6,7‐tetrahydrobenzo[b]thiophene‐Derived NRF2 Activators

ChemistryOpen, 2022
This is the first study investigating the nuclear factor (erythroid‐derived 2)‐like 2 (NRF2) activity of compounds containing a new scaffold, tetrahydrobenzo[b]thiophene.
Kit‐Kay Mak, Zhang Shiming, Dr. Ola Epemolu, Prof. Dr. Albena T. Dinkova‐Kostova, Dr. Geoffrey Wells, Dr. Irina G. Gazaryan, Dr. Raghavendra Sakirolla, Prof. Dr. Zulkefeli Mohd, Prof. Dr. Mallikarjuna Rao Pichika   +8 more
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The preparation of ketene dithioacetals and thiophenes from chloropyridines containing an active methylene group [PDF]

, 2010
The base catalysed reaction of carbon disulphide with the active methylene groups of chloropyridines 4 and 7, followed by alkylation with reagents which also contain active methylene groups, lead to ketene dithioacetals.
Bremner, David H., Sturrock, Keith R., Wishart, Grant   +2 more
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D-π-D chromophores based on dithieno[3,2-b:2′,3'-d]thiophene (DTT) : potential application in the fabrication of solar cell [PDF]

, 2016
In this work, four stable dithieno[3,2-b:2′,3'-d]thiophene-based π-extended molecules were designed and synthesized via a Pd-catalysed Sonogashira coupling reaction.
Akther, Tahmina, Akther, Thamina, Do, Jung-Hee, Elsegood, Mark, Elsegood, Mark R.J., Elsegood, Mark Ri, Feng, Xing, Horsburgh, Lynne, Redshaw, Carl, Wang, Chuan-Zeng, Xing, Feng, Yamato, Takehiko   +11 more
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Flavouring Group Evaluation 76 Revision 2 (FGE.76Rev2): Consideration of sulfur‐containing heterocyclic compounds, evaluated by JECFA, structurally related to thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical group 29 and miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21Rev5

EFSA Journal, 2023
The Panel on Food Additives and Flavourings (FAF) was requested to consider the JECFA evaluations of 28 flavouring substances in the Flavouring Group Evaluation 76 (FGE.76Rev2). Twenty‐one of these substances have been considered in FGE.76Rev1.
EFSA Panel on Food Additives and Flavourings (FAF), Maged Younes, Gabriele Aquilina, Laurence Castle, Gisela Degen, Karl‐Heinz Engel, Paul J Fowler, Maria Jose Frutos Fernandez, Peter Fürst, Ursula Gundert‐Remy, Rainer Gürtler, Trine Husøy, Melania Manco, Peter Moldeus, Sabina Passamonti, Romina Shah, Ine Waalkens‐Berendsen, Matthew Wright, Romualdo Benigni, Claudia Bolognesi, Kevin Chipman, Eugenia Cordelli, Karin Nørby, Camilla Svendsen, Maria Carfí, Giorgia Vianello, Wim Mennes   +26 more
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Palladium-Catalyzed Direct (Het)arylation Reactions of Benzo[1,2-d:4,5-d′]bis([1,2,3]thiadiazole and 4,8-Dibromobenzo[1,2-d:4,5-d′]bis([1,2,3]thiadiazole)

Molecules, 2023
Palladium-catalyzed direct (het)arylation reactions of strongly electron-withdrawing tricyclic benzo[1,2-d:4,5-d′]bis([1,2,3]thiadiazole) and its 4,8-dibromo derivative were studied; the conditions for the selective formation of mono- and bis-aryl ...
Timofey N. Chmovzh, Timofey A. Kudryashev, Daria A. Alekhina, Oleg A. Rakitin   +3 more
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The odour of white bread [PDF]

, 1973
Volatile constituents of white bread were investigated. Different methods were used for isolating and concentrating components to avoid artefacts as far as possible. Especially good was enlarged vapour analysis.
Mulders, E.J.
core   +1 more source