2014
DOI: 10.2174/15701794113109990063
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Synthesis and Transformation of Halochromones

Abstract: Abstract:Herein, an overview of the most important developments on the synthesis and reactivity of halogen-containing chromones, namely simple chromones, flavones, styrylchromones, thiochromones and furochromones are reviewed (since 2003).

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Cited by 20 publications
(5 citation statements)
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“…The traditional synthetic approaches include the intramolecular condensation of o -hydroxy 1,3-diones and the intramolecular conjugate addition of o -hydroxy chalcones under oxidation conditions . While there have been intensive synthetic efforts to develop the efficient synthesis of chromenone derivatives, most of the methods typically involves multistep synthesis of the precursors to chromenones . For example, the intramolecular iodocyclization of alkynones, the intermolecular benzyne addition to allenoic acids, and the Wittig reactions require the synthesis of elaborated starting materials .…”
mentioning
confidence: 99%
“…The traditional synthetic approaches include the intramolecular condensation of o -hydroxy 1,3-diones and the intramolecular conjugate addition of o -hydroxy chalcones under oxidation conditions . While there have been intensive synthetic efforts to develop the efficient synthesis of chromenone derivatives, most of the methods typically involves multistep synthesis of the precursors to chromenones . For example, the intramolecular iodocyclization of alkynones, the intermolecular benzyne addition to allenoic acids, and the Wittig reactions require the synthesis of elaborated starting materials .…”
mentioning
confidence: 99%
“…92 Respecto a las g-pironas y g-benzopironas halogenadas naturales son pocas las reportadas y los halógenos que predominan en sus estructuras son el bromo y el cloro. 94,95 Hoy en día existen diferentes rutas sintéticas para obtener cromonas halosustituidas. 95,96 Estas rutas suelen ser adaptaciones de los métodos representados en los esquemas 1.3 y 1.4 95 partiendo de precursores halogenados.…”
Section: Esquema 17 Síntesis De Cromonas Partir De O-alquinoilfenoles...unclassified
“…94,95 Hoy en día existen diferentes rutas sintéticas para obtener cromonas halosustituidas. 95,96 Estas rutas suelen ser adaptaciones de los métodos representados en los esquemas 1.3 y 1.4 95 partiendo de precursores halogenados.…”
Section: Esquema 17 Síntesis De Cromonas Partir De O-alquinoilfenoles...unclassified
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