Ultrasound-assisted multicomponent synthesis of 4H-pyrans in water and DNA binding studies. [PDF]
Sci Rep, 2020 A simple approach to synthesize new highly substituted 4H-pyran derivatives is described. Efficient Et3N acts as a readily accessible catalyst of this process performed in pure water and with only a 20 mol% of catalyst loading.
Auria-Luna F +4 more
europepmc +2 more sources
The Structure of Zinc Chelidonate in the Crystalline Phase, Aqueous Solution and Assessment of the Interaction with Serum Albumin [PDF]
MoleculesA zinc complex of chelidonic acid (4-oxo-4H-pyran-2,6-dicarboxylic acid) was obtained by reaction with zinc oxide under isothermal conditions. Its composition was confirmed by elemental and thermogravimetric analyses, and its molecular structure was ...
Stanislav Kozin +13 more
doaj +2 more sources
Ni–Unsymmetrical Salen Complex-Catalyzed One-Pot Multicomponent Reactions for Efficient Synthesis of Biologically Active 2‑Amino-3-cyano‑4H‑pyrans [PDF]
ACS OmegaSushree Aradhana Patra +6 more
doaj +2 more sources
Solvent-Controlled Reaction Productivity and Mechanistic Pathways in the Multicomponent Synthesis of 2‑Amino-3-cyano‑4H‑pyrans [PDF]
ACS Organic & Inorganic AuJhonathan Renner Nunes dos Santos +6 more
doaj +2 more sources
Green Synthesis of 4H-Pyrans and 4H-Chromenes in Magnetized Distilled Water [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2023 An efficient, facile, and green synthesis of 4H-pyran and 4H-chromene derivatives in Magnetized Distilled Water (MDW) has been described. In this work, magnetized distilled water was applied as a green-promoting medium for a practical, and ...
Mohammad Bakherad +3 more
doaj +1 more source
[DBN][HSO4]-Promoted facile and green synthesis of 2-Amino-4H-pyrans derivatives under microwave irradiation [PDF]
, 2021 The [DBN][HSO4] -promoted Knoevenagel condensation followed by cyclization protocol has been developed for the first time by a successive reaction of aldehydes, dimedone and malononitrile to afford 2-Amino-4H-pyrans derivatives in high to excellent ...
Mane, Dhanjay, Mane, Vishal
core +1 more source
Current Research in Green and Sustainable Chemistry, 2022 Developing green and sustainable principles in catalytic systems using natural materials is becoming a suitable strategy to reduce the possible pollutant with high-risk agents.
Eskandar Kolvari +4 more
doaj +1 more source
Intercepted-Knoevenagel condensation for the synthesis of unsymmetrical fused-tricyclic 4H-pyrans. [PDF]
Tetrahedron, 2019 4H-Pyrans (4H-Pys) and 1,4-dihydropyridines (1,4-DHPs) are important classes of heterocyclic scaffolds in medicinal chemistry. Herein, an indium(III)-catalyzed one-pot domino reaction for the synthesis of highly functionalized 4H-Pys, and a model of 1,4-DHP is reported.
Shearer C +6 more
europepmc +4 more sources
Cu-phthalocyanine Coated Hybrid Magnetic Nanoparticles: Preparation and Application in the Synthesis of Mono- and Bis pyrano[2,3-d]pyrimidinones and mono- and Bis-2-amino-4H-pyrans [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2020 In this research, Cu-phthalocyanine coated hybrid magnetic nanoparticles have been prepared in a simple method and evaluated as an efficient catalyst in the preparation of mono- and bis-pyrano[2,3-d]pyrimidinones and mono- and bis-2-amino-4H-pyrans from ...
Ali Reza Karimi +2 more
doaj +1 more source
One-pot two-step mechanochemical synthesis of arylsulfonyl 4H-pyrans
, 2022 In this paper, a simple and environment-friendly protocol was developed for the synthesis of arylsulfonyl 4H-pyrans via L-proline-catalyzed one-pot two-step reaction of aromatic aldehyde with phenylsulphonyl acetonitrile and dimedone under ball-milling ...
Qianqian Huang (1409008) +4 more
core +1 more source