Results 11 to 20 of about 128,089 (280)

Heterocycles in Medicinal Chemistry III [PDF]

Molecules
The rapid development of organic chemistry in the early 19th century also saw the development of heterocyclic chemistry [...]
Josef Jampilek
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Heterocyclic chemistry [PDF]

Annual Reports Section "B" (Organic Chemistry), 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Collagen-coated superparamagnetic iron oxide nanoparticles as a sustainable catalyst for spirooxindole synthesis

Scientific Reports, 2022
In this work, a novel magnetic organic–inorganic hybrid catalyst was fabricated by encapsulating magnetite@silica (Fe3O4@SiO2) nanoparticles with Isinglass protein collagen (IGPC) using epichlorohydrin (ECH) as a crosslinking agent.
Shima Ghanbari Azarnier, Maryam Esmkhani, Zahra Dolatkhah, Shahrzad Javanshir   +3 more
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Synthesis of α-amino amides via α-amino imidoylbenzotriazoles [PDF]

Journal of the Serbian Chemical Society, 2005
Reactions of isonitriles 11a-c with N-(α-aminoalkyl)benzotriazoles 10a-k afford N-(α-aminoimidoyl)benzotriazoles 12a-q which on hydrolysis by dilute hydrochloric acid gave α-amino amides 14a-j.
Katritzky Alan R., Mohapatra Prabhu P., Singh Shailendra, Clemens Nicole, Kirichenko Kostyantyn   +4 more
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3′-Methyl-2-oxo-1′,5′-diphenyl-1′,7′-dihydrospiro[indoline-3,4′-pyrazolo[3,4-b]pyridine]-6′-carboxylic Acid

Molbank, 2021
3′-methyl-2-oxo-1′,5′-diphenyl-1′,7′-dihydrospiro[indoline-3,4′-pyrazolo[3,4-b]pyridine]-6′-carboxylic acid was synthesized using diverse conditions. The best reaction condition consisted of using water as solvent under microwave irradiation, affording ...
Pablo E. Romo, Braulio Insuasty, Jairo Quiroga, Rodrigo Abonia   +3 more
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Ultrasound-Promoted preparation and application of novel bifunctional core/shell Fe3O4@SiO2@PTS-APG as a robust catalyst in the expeditious synthesis of Hantzsch esters

Scientific Reports, 2023
In this work, D-(–)-α-phenylglycine (APG)-functionalized magnetic nanocatalyst (Fe3O4@SiO2@PTS-APG) was designed and successfully prepared in order to implement the principles of green chemistry for the synthesis of polyhydroquinoline (PHQ) and 1,4 ...
Peyman Shakib, Mohammad G. Dekamin, Ehsan Valiey, Shahriar Karami, Mohammad Dohendou   +4 more
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CuFe2O4@SiO2@L-arginine@Cu(I) as a new magnetically retrievable heterogeneous nanocatalyst with high efficiency for 1,4-disubstituted 1,2,3-triazoles synthesis

Scientific Reports, 2023
A novel magnetic heterogeneous catalyst was synthesized through the immobilization of copper ions onto the l-arginine functionalized CuFe2O4@SiO2. The prepared catalyst was characterized by Fourier Transform Infrared (FT-IR), X-ray diffraction (XRD ...
Fatemeh Salehzadeh, Maryam Esmkhani, Mahsa Zallaghi, Shahrzad Javanshir, Mohammad G. Dekamin   +4 more
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Synthesis of various fused pyrimidine rings with their pharmacological and antimicrobial evaluation [PDF]

Journal of the Serbian Chemical Society, 2014
Various fused pyrimidine such as furo[2,3-d]pyrimidine, triazolo[1,5-a]pyrimidine, tetrazolo[1,5-a]pyrimidine were synthesized from the reactions of thioxopyrimidine-6(1H)-ones with ethyl chloroacetate (under different reaction conditions ...
Mounir Salem A., Marzouk Magda I., Mahmoud Naglaa F.   +2 more
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Preparation, Antibacterial Activity, and Catalytic Application of Magnetic Graphene Oxide‐Fucoidan in the Synthesis of 1,4‐Dihydropyridines and Polyhydroquinolines

ChemistryOpen, 2021
Polymer‐coated magnetic nanoparticles are emerging as a useful tool for a variety of applications, including catalysis. In the present study, fucoidan‐coated magnetic graphene oxide was synthesized using a natural sulfated polysaccharide.
Aliakbar Nosrati, Sara Amirnejat, Dr. Shahrzad Javanshir   +2 more
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Heterocyclic Chemistry [PDF]

Chemistry International -- Newsmagazine for IUPAC, 2009
Recent progress in the synthesis of heterocyclic compounds is presented\ud 2010 offered highlights in pericyclic chemistry, particularly 1,3-dipolar cycloaddition chemistry, asymmetric synthesis, gold catalysis, organocatalysis, hydroamination, C–H activation and multicomponent reactions.
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