Results 41 to 50 of about 10,665 (213)

Halogen and Hydrogen Bonding Benzothiophene Diol Derivatives: A Study Using ab initio Calculations and XRay Crystal Structure Measurements [PDF]

open access: yes, 2014
The aim of this study is to describe and compare the supramolecular interactions, in the solid state, of chloro-, bromo-, and iodobenzothiophene diols.
Claudia, Fattuoni   +6 more
core   +1 more source

In Silico Drug Design of Anti-Breast Cancer Agents

open access: yesMolecules, 2023
Cancer is a condition marked by abnormal cell proliferation that has the potential to invade or indicate other health issues. Human beings are affected by more than 100 different types of cancer.
Kalirajan Rajagopal   +6 more
doaj   +1 more source

Phosphine-free palladium-catalysed direct C2-arylation of benzothiophenes with aryl bromides [PDF]

open access: yes, 2013
Copies of 1H and 13C NMR spectra of new compounds are available (attached file).International audienceLigand-free Pd(OAc)2 was found to catalyse very efficiently the direct C2-arylation of benzothiophene derivatives under low catalyst concentration.
Bruneau, Christian   +2 more
core   +3 more sources

Crystal structures of ethyl (2S*,2′R*)-1′-methyl-2′′,3-dioxo-2,3-dihydrodispiro[1-benzothiophene-2,3′-pyrrolidine-2′,3′′-indoline]-4′-carboxylate and ethyl (2S*,2′R*)-5′′-chloro-1′-methyl-2′′,3-dioxo-2,3-dihydrodispiro[1-benzothiophene-2,3′-pyrrolidine-2′,3′′-indoline]-4′-carboxylate

open access: yesActa Crystallographica Section E, 2014
In the title compounds, C22H20N2O4S, (I), and C22H19ClN2O4S, (II), the pyrrolidine rings have twist conformations on the spiro–spiro C—C bonds. In (I), the five-membered ring of the oxindole moiety has an envelope conformation with the spiro C atom as ...
M. P. Savithri   +5 more
doaj   +1 more source

The synthesis, crystal structure and Hirshfeld surface analysis of the thiophene derivatives 5-(phenylsulfonyl)-5,6-dihydrobenzo[4,5]thieno[3,2-j]phenanthridine and (E)-N-{2-[2-(benzo[b]thiophen-2-yl)ethenyl]phenyl}-N-(prop-2-yn-1-yl)benzenesulfonamide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
In both of the title compounds, C26H19NO2S2, (I), and C25H19NO2S2, (II), the benzothiophene rings are essentially planar with maximum deviations of 0.026 (1) and −0.016 (1) Å for the carbon and sulfur atoms in compounds (I) and (II), respectively. In (I),
S. Madhan   +3 more
doaj   +1 more source

Crystal-structure determination and Hirshfeld surface analysis of two new thiophene derivatives: (E)-N-{2-[2-(benzo[b]thiophen-2-yl)ethenyl]-5-fluorophenyl}benzenesulfonamide and (E)-N-{2-[2-(benzo[b]thiophen-2-yl)ethenyl]-5-fluorophenyl}-N-(but-2-yn-1-yl)benzenesulfonamide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
In the title compounds, C22H16FNO2S2 (I) and C26H20FNO2S2 (II), the benzothiophene rings are essentially planar with maximum deviations of 0.009 (1) and 0.001 (1) Å for the carbon and sulfur atom in compounds I and II, respectively.
S. Madhan   +3 more
doaj   +1 more source

Crystal structure of 6-(p-tolyl)benzo[b]naphtho[2,3-d]thiophene and of an orthorhombic polymorph of 7-phenylanthra[2,3-b]benzo[d]thiophene

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The title compounds, C23H16S, (I), and C26H16S, (II), are benzothiophene derivatives in which the benzothiophene moiety is fused with a naphthalene ring system in (I), and with an anthracene ring system in (II).
S. Gopinath   +4 more
doaj   +1 more source

Mutual inhibition effect of sulfur compounds in the hydrodesulfurization of thiophene, 2-ethylthiophene and benzothiophene ternary mixture

open access: yesScientific Reports, 2021
The hydrodesulphurization of a model component and equimolar ternary mixture of thiophene, 2-ethylthiophene and benzothiophene over sulphided CoMo/γ-Al2O3 and CoMo/γ-Al2O3-Nb2O5 catalysts were investigated in a fixed bed flow reactor.
Catalina Calin   +6 more
doaj   +1 more source

Bimetallic Iron–Palladium Catalyst System as a Lewis-Acid for the Synthesis of Novel Pharmacophores Based Indole Scaffold as Anticancer Agents

open access: yesMolecules, 2021
The Friedel–Crafts reaction between substituted indoles as nucleophiles with chalcones-based benzofuran and benzothiophene scaffolds was carried out by employing a highly efficient bimetallic iron–palladium catalyst system.
Mohammad Shahidul Islam   +7 more
doaj   +1 more source

Synthesis of C,N'-linked bis-heterocycles using a deprotometalation-iodination-N-arylation sequence and evaluation of their antiproliferative activity in melanoma cells [PDF]

open access: yes, 2014
International audienceBenzothiophene, benzofuran, benzothiazole and benzoxazole were deprotometalated using the lithium-zinc combination prepared from ZnCl2*TMEDA (TMEDA = N,N,N',N'-tetramethylethylenediamine, 1 equiv) and lithium 2,2,6,6 ...
Bentabed-Ababsa, Ghenia   +8 more
core   +3 more sources

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