Results 11 to 20 of about 36,445 (329)
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 +2 more
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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 +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. +2 more
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Silica gel-assisted synthesis of benzo[b]thiophenes from o-(alkylsulfanyl)(ethynyl)benzenes
Results in Chemistry, 2022 A variety of 2-substituted benzo[b]thiophenes were prepared from o-(alkylsulfanyl)(ethynyl)benzenes in the presence of silica gel under thermal conditions. Tertiary alkyl-substituted sulfanyl derivatives gave good results.
Kozo Toyota +2 more
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Palladium-catalyzed 2,5-diheteroarylation of 2,5-dibromothiophene derivatives
Beilstein Journal of Organic Chemistry, 2014 Conditions allowing the one pot 2,5-diheteroarylation of 2,5-dibromothiophene derivatives in the presence of palladium catalysts are reported.
Fatma Belkessam +4 more
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ON THE PREPARATION OF THIOPHENE. [PDF]
Journal of the American Chemical Society, 1890 n ...
openaire +3 more sources
Carbon−Phosphorus Bond Activation of Tri(2-thienyl)phosphine at Dirhenium and Dimanganese Centers [PDF]
, 2009 Reaction of [Re2(CO)9(NCMe)] with tri(2-thienyl)phosphine (PTh3) in refluxing cyclohexane affords three substituted dirhenium complexes: [Re2(CO)9(PTh3)] (1), [Re2(CO)8(NCMe)(PTh3)] (2), and [Re2(CO)8(PTh3)2] (3).
Begum, Noorjahan +11 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
Novel Substituted Thiophenes and Sulf-Polyacetylene Ester from Echinops ritro L.
Molecules, 2019 Three new substituted bithiophenes (1⁻3), and one new sulf-polyacetylene ester, ritroyne A (16) were isolated from the whole plant of Echinops ritro together with twelve known substituted thiophenes.
Liang-Bo Li +5 more
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Reversible Emission Tunability from 2D‐Layered Perovskites with Conjugated Organic Cations
Advanced Photonics Research, 2021 The structural flexibility of 2D‐layered halide perovskites provides unprecedented opportunities for tuning their optical properties. For example, lattice distortions facilitate white emission that stems from self‐trapped excitons or defects, and organic
Balaji Dhanabalan +6 more
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