METHODS OF SYNTHESIS OF CHROMENO[2,3- b ]CHROMENES
Sign Up to like & getrecommendations! Published in 2021 at "Chemistry of Heterocyclic Compounds"
DOI: 10.1007/6067
Abstract: The minireview summarizes published data on the methods of synthesis of chromeno[2,3- b ]chromenes, their benzo analogs, as well as partially hydrogenated and oxidized derivatives. Due to the paucity of methods for the synthesis of… read more here.
Keywords: methods synthesis; synthesis chromeno; chemistry; chromeno chromenes ... See more keywords
[CMMIM][BF4–] Ionic Liquid-Catalyzed Facile, One-Pot Synthesis of Chromeno[4,3-d]pyrido[1,2-a]pyrimidin-6-ones: Evaluation of Their Photophysical Properties and Theoretical Calculations
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c05015
Abstract: Herein, we have developed a novel synthetic route for the synthesis of chromeno[4,3-d]pyrido[1,2-a]pyrimidin-6-one derivatives 8a-q using an acid ionic liquid [CMMIM][BF4–] 4 via one-pot, three-component synthesis in aqueous ethanol at room temperature. A series of… read more here.
Keywords: chromeno pyrido; pyrido pyrimidin; synthesis; cmmim bf4 ... See more keywords
Diastereodivergent synthesis of chromeno[2,3-b]chromenes by tuning all of the reactivity centers of isocyanoacetate.
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DOI: 10.1039/d2cc01632j
Abstract: A novel diastereodivergent tricyclization of isocyanoacetates with o-quinone methides was accomplished for the efficient synthesis of chromeno[2,3-b]chromene derivatives. All three reactive centers of isocyanoacetate reacted sequentially with two o-QMs, affording the products with four adjacent… read more here.
Keywords: synthesis chromeno; centers isocyanoacetate; diastereodivergent synthesis; chromeno chromenes ... See more keywords
Synthesis of Chromeno[3,4-b]piperazines by an Enol-Ugi/Reduction/Cyclization Sequence
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DOI: 10.3390/molecules26051287
Abstract: Keto piperazines and aminocoumarins are privileged building blocks for the construction of geometrically constrained peptides and therefore valuable structures in drug discovery. Combining these two heterocycles provides unique rigid polycyclic peptidomimetics with drug-like properties including… read more here.
Keywords: chromeno piperazines; reduction cyclization; enol ugi; ugi reduction ... See more keywords