Results 61 to 70 of about 3,954 (184)

5-[(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methylene]-1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione

Molbank, 2010
The title compound, 5-[(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)methylene]-1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione, has been synthesized by condensation of 1,3-diethyl-2-thiobarbituric acid and 3,5-dimethyl-1-phenylpyrazole-4-carbaldehyde in
Salman A. Khan, Abdullah Mohamed Asiri
doaj   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source

5,5'-(1,4-Phenylenedimethylylidene)bis(1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione)

Molbank, 2010
A novel compound, 5,5'-(1,4-phenylenedimethylylidene)bis(1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione) (3) has been synthesized by condensation of 1,3-diethyl-2-thiobarbituric acid and terephthalaldehyde in anhydrous ethanol in the presence of ...
Salman A. Khan, Abdullah Mohamed Asiri
doaj   +1 more source

Highly Selective Fluorescence Sensing of Ba2+ With a Benzo‐21‐Crown‐7‐Based BODIPY Through Modulation of an Intramolecular Charge Transfer in Aqueous Solution

Analysis &Sensing, Volume 6, Issue 4, July 2026.
A benzo‐21‐crown‐7 BODIPY dye (fluorescent probe) serves as a highly selective fluorescent probe for Ba2+ in aqueous solution. Ba2+ binding triggers a strong fluorescence enhancement, enabling sensitive detection with high selectivity, pH stability, and robustness under prolonged illumination.
Thomas Schwarze, Mazen Al Akrami, Tobias Sprenger, Nora Kulak   +3 more
wiley   +1 more source

Synthesis of New (E)-2-(1H-Indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles via Microwave-Assisted Knoevenagel Condensation

Journal of Chemistry, 2017
Given the broad spectrum of biological uses of heteroaryl-acrylonitrile derivatives, it is necessary to find simple methods to synthesize and diversify this family of compounds.
Adriana V. Treuer, Pedro De-La-Torre, Margarita I. Gutiérrez   +2 more
doaj   +1 more source

Synthesis, Electrochemistry, In Vitro Antiprotozoal Efficacy and Mechanistic Study of Novel ‘Ferrantoin’ and Related Derivatives

Applied Organometallic Chemistry, Volume 40, Issue 7, July 2026.
1,2‐Disubstituted ferrocene analogues bearing hydantoin or rhodanine synthons were synthesised and assessed for antitrypanosomatid activity. An antileishmanial early lead, analogue 23, acting through ROS generation and hence oxidative stress, was uncovered.
Maryna Saayman, Janine Aucamp, Helena D. Janse van Rensburg, Christina Kannigadu, Rotondwa Mphephu, Andrew J. Swarts, Keisuke Suganuma, David D. N'Da   +7 more
wiley   +1 more source

Synthesis of indole–cycloalkyl[b]pyridine hybrids via a four-component six-step tandem process

Beilstein Journal of Organic Chemistry, 2018
The one-pot four-component reaction of 3-(1H-indol-3-yl)-3-oxopropanenitriles, aromatic aldehydes, cycloalkanones and ammonium acetate occurred via a six-step tandem Knoevenagel condensation–nucleophilic addition to carbonyl–Michael addition–N ...
Muthumani Muthu, Rakkappan Vishnu Priya, Abdulrahman I. Almansour, Raju Suresh Kumar, Raju Ranjith Kumar   +4 more
doaj   +1 more source

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

Synthesis and E/Z Configuration Determination of Novel Derivatives of 3-Aryl-2-(benzothiazol-2'-ylthio) Acrylonitrile, 3-(Benzothiazol-2'-ylthio)-4-(furan-2''-yl)-3-buten-2-one and 2-(1-(Furan-2''-yl)-3'-oxobut-1''-en-2-ylthio)-3-phenylquinazolin-4(3H)-one

Molecules, 2011
Knoevenagel condensation of 2-(benzothiazol-2-ylthio) acetonitrile (2) with either furan-2-carbaldehyde or thiophene-2-carbaldehydes leads to E-isomers 4a–b exclusively, while the condensation of the compound 2 with benzaldehyde or para-substituted ...
Adel Abou El-Khair, Fatima Al-Omran, Rafat M. Mohareb   +2 more
doaj   +1 more source

Three‐Step Synthesis Toward Fluorene‐Based Non‐Fused‐Ring Acceptors for Organic Solar Cells

Chemistry – A European Journal, Volume 32, Issue 24, 23 June 2026.
Applying a simple three step synthesis strategy leads to two fluorene‐based non‐fused‐ring electron acceptors, FHM‐Cl and FHM‐F for organic solar cells. The chlorinated variant delivers markedly higher efficiency due to broader light harvesting and favorable molecular packing, resulting in improved charge transport and reduced recombination losses ...
Virginia Lafranconi, Suman Mallick, Lisa Nauta, Lisa Inzko, Julia Hönigsberger, Danijel Babic, Bettina Schlemmer, Daniele Padula, Heinz Amenitsch, Thomas Rath, Gregor Trimmel   +10 more
wiley   +1 more source