Results 121 to 130 of about 191,241 (287)

A challenging redox neutral Cp*Co(III)-catalysed alkylation of acetanilides with 3-buten-2-one: synthesis and key insights into the mechanism through DFT calculations

open access: yesBeilstein Journal of Organic Chemistry, 2018
Traditional, established palladium cross-coupling procedures are widely applied in complex molecule synthesis; however, there is a significant disadvantage in the requirement for pre-functionalised substrates (commonly halides/triflates).
Andrew Kenny   +5 more
doaj   +1 more source

Electronic‐Structure‐Guided Screening of Piperazine Derivatives: Achieving Efficient CO2 Capture with High Cyclic Capacity and Low Energy Consumption

open access: yesAdvanced Science, EarlyView.
A density functional theory (DFT)‐based framework is proposed to predict CO2 capture performance of piperazine derivatives. 2,6‐dimethylpiperazine (26DMPZ) is identified as a promising candidate: CO2‐induced precipitation in water eliminates the need for organic solvents; the low‐solubility, unstable dicarbamate enhances CO2 capture efficiency and ...
Feng Xie   +5 more
wiley   +1 more source

Simple synthesis of pyrrolo[3,2-e]indole-1-carbonitriles

open access: yesBeilstein Journal of Organic Chemistry, 2013
Alkylation of 5-nitroindol-4-ylacetonitriles with ethyl chloroacetate, α-halomethyl ketones, and chloroacetonitrile followed by a treatment of the products with chlorotrimethylsilane in the presence of DBU gives 1-cyanopyrrolo[3,2-e]indoles substituted ...
Adam Trawczyński   +3 more
doaj   +1 more source

Thermoelectric Properties of a Family of Benzodifuranone‐Based Conjugated Copolymers in Oriented Thin Films Doped Sequentially With NDMBI‐H

open access: yesAdvanced Electronic Materials, EarlyView.
Combining high polymer orientation of n‐type copolymers by temperature rubbing and sequential doping with N‐DMBI results in a strong improvement of electrical conductivity and thermoelectric power factors reaching up to 9.8 ± 1.6 S cm−1 and 8 ± 3 µW m−1.K2, respectively.
Shubhradip Guchait   +7 more
wiley   +1 more source

Development and Clinical Evaluation of a Multiplexed Health Surveillance Panel Using Ultra High‐Throughput PRM‐MS in an Inflammatory Bowel Disease Cohort

open access: yesAngewandte Chemie, EarlyView.
Validating biomarkers of disease is necessary for clinical use. The Health Surveillance Panel (83 peptides from 57 proteins) was developed as a PRM assay and evaluated using the Stellar‐MS platform. The assay was validated with a large clinical cohort of inflammatory bowel disease patients alongside quality controls.
Qin Fu   +18 more
wiley   +2 more sources

Interplay of Backbone Conformation, Morphology and Thermoelectric Properties of Benzodifuranone‐Isatin Acceptor Polymers

open access: yesAdvanced Electronic Materials, EarlyView.
Modification of polymer backbone via halogenation and comonomer selection leads to conjugated backbones of different stereoelectronic properties, thin film morphologies, and electrical characteristics. The interplay of conformational isomerism, coplanarity, backbone curvature, backbone orientation, and ordering in thin films, electrical conductivity ...
Diego R. Hinojosa   +11 more
wiley   +1 more source

Hybrid of Indolizine and Merocyanine—A New Class of Organelle‐Specific Dyes

open access: yesAngewandte Chemie, EarlyView.
The new merocyanines and cyanines possessing an indolizine scaffold were synthesized via tandem Friedel–Crafts alkylation followed by nucleophilic aromatic substitution, by leveraging the special reactivity of 2,3,5,6‐tetrafluoro‐4‐hydroxybenzaldehyde.
Jaqueline S. A. Badaro   +9 more
wiley   +2 more sources

Direct trifluoroethylation of carbonyl sulfoxonium ylides using hypervalent iodine compounds

open access: yesBeilstein Journal of Organic Chemistry
A novel study on the hypervalent iodine-mediated polyfluoroalkylation of sulfoxonium ylides was developed. Sulfoxonium ylides, known for their versatility and stability, are promising substrates for numerous transformations in synthetic chemistry.
Radell Echemendía   +4 more
doaj   +1 more source

Alkylation of Hydroxymethylenecyclohexanones. [PDF]

open access: green, 1928
HEMENDRA KUMAR SEN, KANAILAL MONDAL
openalex   +1 more source

Recent Progress on Photoelectrochemical Organic Upgrading: A Review from Direct and Indirect Charge Transfer Pathway

open access: yesAdvanced Energy Materials, EarlyView.
Photoelectrochemical (PEC) organic upgrading at the anode, coupled with hydrogen evolution at the cathode, presents a promising strategy for enhancing solar energy utilization while simultaneously generating value‐added chemicals. An overview of directional photoanodic conversion of organic substrates is presented, distinctively with an eye to the ...
Cheng Lin   +3 more
wiley   +1 more source

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