Results 21 to 30 of about 4,804 (192)

Mathematical Modeling of Fixed Bed Adsorption: Influence of Main Parameters on Breakthrough Curve [PDF]

Journal of Chemical and Petroleum Engineering, 2018
Dynamic modeling and simulation of fixed bed adsorption process was carried out by explaining the behavior of breakthrough curve parameter. Adsorption of sulfur compound, present in road fuel, has posed a great challenge.
Amirhossein Ghorbani, Ramin Karimzadeh, Masoud Mofarahi   +2 more
doaj   +1 more source

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

Acta 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, M. Suresh, R. Raghunathan, G. Vimala, R. Raja, A. SubbiahPandi   +5 more
doaj   +1 more source

Conversion of sulphur compounds into light gas oil: I. Kinetics of the conversion of model compounds [PDF]

Hemijska Industrija, 2002
The problem of sulfur compounds conversion, particularly heterocyclic compounds, from the middle fraction of crude oil (light gas oil) was analyzed and will be published in several articles in the Chemical Industry Journal.
Janković Jasna, Skala Dejan U.
doaj   +1 more source

Photo‐Triggered, Fast, and Fluorogenic Thiophene‐Based Cycloalkynes for the Bioorthogonal Fluorescent Labeling of 1,3‐Dipole‐Tagged Molecules in No‐Wash Conditions

Angewandte Chemie, EarlyView.
Thiophene is king! The fusion of thiophene rings to cycloalkynes super‐charged their copper‐free click chemistry applications, by (1) enhancing the alkyne reactivity (fastest cyclooctyne to date) and (2) rendering the alkyne fluorogenic (with fluorescence enhancement up to 150‐fold upon reaction), making these bioorthogonal reagents ideal for tracking ...
Jurgen Schulz, Zoeisha S. Chinoy, Tarek Khalaf, Yukang Li, Pengchen Ma, Dennis Svatunek, Kendall N. Houk, Frédéric Friscourt   +7 more
wiley   +2 more sources

The Influence of Various Factors on Nanocatalyst Activity during Benzothiophene Hydrogenation

Applied Sciences, 2022
Herein, we disclosed a method of preparing a nanocatalyst containing nickel-cobalt by impregnation in a hydrochloric acid medium. Optimal conditions were established for all stages of nanocatalyst preparation using the method of probabilistic ...
Aigerim Barshabayeva, Nazerke Balpanova, Darzhan Aitbekova, Murzabek Baikenov, Yermek Aubakirov, Z. S. Khalikova, Almas Tusipkhan, Balzhan Tulebaeva, Taurbaeva Gulzhan   +8 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

Acta 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, K. Sethusankar, Helen Stoeckli-Evans, Muhamad Rafiq, Arasambattu K. Mohanakrishnan   +4 more
doaj   +1 more source

In Silico Drug Design of Anti-Breast Cancer Agents

Molecules, 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, Anandarajagopal Kalusalingam, Anubhav Raj Bharathidasan, Aadarsh Sivaprakash, Krutheesh Shanmugam, Monall Sundaramoorthy, Gowramma Byran   +6 more
doaj   +1 more source

Targeted Synthesis and Analysis of Biologically Active Azomethine Derivatives of 2-amino-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide

Разработка и регистрация лекарственных средств, 2021
Introduction. Azomethine derivatives of 2-amino-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide are acyclic precursors of biologically active compounds derived from 5,6,7,8-tetrahydro-3H-benzoteopheno[2,3-d]pyrimidine-4-one. Examples of these groups of
A. S. Chiriapkin, I. P. Kodonidi, M. V. Larsky   +2 more
doaj   +1 more source

Crystal structure of ethyl 1′,5-dimethyl-2′′,3-dioxo-3H-dispiro[benzo[b]thiophene-2,3′-pyrrolidine-2′,3′′-indoline]-4′-carboxylate

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C23H22N2O4S, crystallized with two independent molecules (A and B) in the asymmetric unit. They have very similar conformations with the pyrrolidine ring having a twisted conformation, on the Cspiro—Cspiro bond, in both molecules.
R. Raja, J. Govindaraj, M. Suresh, R. Raghunathan, A. SubbiahPandi   +4 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

Acta 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, M. NizamMohideen, Vinayagam Pavunkumar, Arasambattu K. MohanaKrishnan   +3 more
doaj   +1 more source