Results 1 to 10 of about 10,026 (250)

Synthetic Anthocyanidins from Natural Benzopyrans [PDF]

Natural Product Communications, 2016
A hydride abstraction strategy can be used to make anthocyanidins and isoflavylium salts from benzopyrans in good yields.
George A. Kraus, Ivan M. Geraskin
doaj   +3 more sources

Recent advances in the structures and bioactivities of benzopyrans derived from marine fungi: a review

Frontiers in Pharmacology
Marine fungi represent a treasure trove of bioactive secondary metabolites, with benzopyran compounds emerging as a significant class of these natural products.
Huannan Wang
exaly   +4 more sources

Synthesis of 2-Prenylated Alkoxylated Benzopyrans by Horner-Wadsworth-Emmons Olefination with PPARα/γ Agonist Activity.

ACS Medicinal Chemistry Letters, 2021
We have synthesized series of 2-prenylated benzopyrans as analogues of the natural polycerasoidol, a dual PPARα/γ agonist with anti-inflammatory effects.
Ainhoa García, Laura Vila, P. Marín, Álvaro Bernabeu, Carlos Villarroel-Vicente, N. Hennuyer, B. Staels, X. Franck, B. Figadère, N. Cabedo, D. Cortes   +10 more
semanticscholar   +2 more sources

Contrasting Photochromic and Acidochromic Behaviors of Pyridyl- and Pyrimidylethynylated Mono- and Bis-Benzopyrans

ACS Omega, 2021
Investigation of photochromic and acidochromic behaviors of a set of pyridyl- and pyrimidylethynylated mono- and bis-benzopyrans reveals an intriguing influence of the N-heteroaryl ring on spectrokinetic properties of the photogenerated o-quinonoid ...
Arindam Mukhopadhyay, Swati Jindal, Vijay Kumar Maka, Jarugu Narasimha Moorthy   +3 more
doaj   +2 more sources

Synthesis of Polycyclic Ether-Benzopyrans and In Vitro Inhibitory Activity against Leishmania tarentolae

Molecules, 2020
Construction of a focused library of polycyclic ether-benzopyrans was undertaken in order to discover new therapeutic compounds that affect Leishmania growth and infectivity.
Sarita Singh, Jacob P. Grabowski, Shilpa Pohani, C. Fiore Apuzzo, David C. Platt, Marjorie A. Jones, T. Andrew Mitchell   +6 more
doaj   +2 more sources

Photochromism of indolino-benzopyrans studied by NMR and UV-visible spectroscopy [PDF]

International Journal of Photoenergy, 2006
The synthesis of photochromic 3,3-di(4′-fluorophenyl)-3H-benzopyrans fused to an indole moiety is described. The structures of photomerocyanines elucidated by NMR spectroscopy and spectrokinetic data (λmax⁡ of colored form, colorability, and rate ...
S. Delbaere, J. Berthet, M. A. Salvador, G. Vermeersch, M. M. Oliveira   +4 more
doaj   +3 more sources

Diastereo- and Enantioselective Syntheses of Trisubstituted Benzopyrans by Cascade Reactions Catalyzed by Monomeric and Polymeric Recoverable Bifunctional Thioureas and Squaramides

ACS Omega, 2018
4-Vinylphenyl-substituted squaramides have been tested as organocatalysts for the diastereo- and enantioselective synthesis of trisubstituted benzopyrans via an oxa-Michael intramolecular nitro-Michael cascade reaction.
José M. Andrés, Alicia Maestro, María Valle, Isabel Valencia, Rafael Pedrosa   +4 more
doaj   +2 more sources

Solid-Phase Parallel Synthesis of Drug-Like Artificial 2<em>H</em>-Benzopyran Libraries

Molecules, 2012
This review covers the construction of drug-like 2<em>H</em>-benzopyrans and related libraries using solid-phase parallel synthesis. In this context, the preparation of substituted benzopyrans such as mono-, di- and trisubstituted benzopyran ...
Young-Dae Gong, Taeho Lee
doaj   +1 more source

Design, Synthesis, and Evaluation of Near-Infrared Fluorescent Molecules Based on 4H-1-Benzopyran Core

Molecules, 2021
A series of novel fluorescent 4H-1-benzopyrans was designed and developed as near-infrared fluorescent molecules with a compact donor–acceptor-donor architecture. Spectral intensity of the fluorescent molecules M-1, M-2, M-3 varied significantly with the
Shuting Wang, Shulei Zhu, Yawen Tanzeng, Yuexing Zhang, Chuchu Li, Mingliang Ma, Wei Lu   +6 more
doaj   +1 more source

Crystal structure of 2-amino-4-(4-methoxyphenyl)-4H-benzo[g]chromene-3-carbonitrile

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C21H16N2O2, the naphthalene fragment is twisted slightly, as indicated by the dihedral angle of 3.2 (2)° between the two six-membered rings. The pendant 4-methoxyphenyl ring makes a dihedral angle of 86.08 (6)° with the central six-
Joel T. Mague, Shaaban K. Mohamed, Mehmet Akkurt, Sabry H. H. Younes, Mustafa R. Albayati   +4 more
doaj   +1 more source