Recent developments using malononitrile in ultrasound-assisted multicomponent synthesis of heterocycles. [PDF]
Ultrason SonochemJavahershenas R, Nikzat S.
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A novel recyclable hydrolyzed nanomagnetic copolymer catalyst for green, and one-pot synthesis of tetrahydrobenzo[b]pyrans. [PDF]
Sci RepMaleki B +5 more
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Crystal structure and Hirshfeld surface analyses, inter-molecular inter-action energies and energy frameworks of methyl 6-amino-5-cyano-2-(2-meth-oxy-2-oxoeth-yl)-4-(4-nitro-phen-yl)-4<i>H</i>-pyran-3-carboxyl-ate. [PDF]
Acta Crystallogr E Crystallogr CommunNaghiyev FN +6 more
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Design of natural asphalt sulfamic acid (NA-NHSO3H) as a scalable natural asphalt-derived heterogeneous Brønsted acid to catalyze multicomponent reactions meeting green chemistry goals. [PDF]
HeliyonAbdolahi S, Soleiman-Beigi M.
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Synthesis of Novel Diphenyl Ether-Based Bis-Heterocycles as Novel Hybrid Molecules via Michael and Other Cyclocondensation Reactions. [PDF]
ACS OmegaSalem ME +5 more
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Switching <i>N</i>-Alkylation Regioselectivity of Trifluoromethylated Pyrazoles Guided by Functional Group Tuning. [PDF]
Int J Mol SciEdilova YO +6 more
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Natural Product-Based Therapeutic Potential of <i>Fagonia arabica</i>: Phytochemical Characterization and Biological Activities of Leaf and Seed Extracts. [PDF]
Pharmaceuticals (Basel)Aziz IM, Alshalan RM, Aljowaie RM.
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Cerium(III) Chloride–Catalyzed One-Pot Synthesis of Tetrahydrobenzo[b]pyrans
Synthetic Communications, 2009 Efficient one-pot synthesis of 4H-benzo[b]pyrans via a three-component cyclocondensation of aryl aldehydes, malononitrile, and dimedone has been reported using CeCl3·7H2O as ...
B S Sastry, Gowravaram Sabitha
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Data on the chemistry of monocyclic, unsaturated, six-membered, oxygen-containing heterocycles, viz., 4H-pyrans, are correlated and systematized for the first time. The methods for their synthesis, their transformations, and spectroscopic data for them are discussed. The interest in these compounds, which has increased recently, is due to the fact that
O. V. Drygina, A. D. Garnovskii
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Synthesis of Novel Hybrid 4H-Pyran-lipoic and 4H-Pyran-azetidine Derivatives
Synthesis, 2017In this study, a molecular hybridization strategy was used to design and synthesize two novel series of hybrid compounds: 4H-pyran-lipoic and 4H-pyran-azetidine, employing ammonium hydroxide and involving the participation of aldehydes, malononitrile, and compounds derived from β-ketoesters to obtain the products with good yields.
Miguel Vázquez +7 more
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