Efficient Synthesis of Fluorescent Coumarins and Phosphorous-Containing Coumarin-Type Heterocycles via Palladium Catalyzed Cross-Coupling Reactions

Autor: Rumen Lyapchev, Ana I. Koleva, Iskra Z. Koleva, Kristian Subev, Ivelina Madzharova, Kristina B. Simeonova, Nevena Petkova-Yankova, Bernd Morgenstern, Vesela Lozanova, Petar Y. Petrov, Rositca D. Nikolova
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Molecules, Vol 27, Iss 21, p 7649 (2022)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules27217649
Popis: Quantum-chemical calculations on the spectral properties of some aryl substituted 3-phosphonocoumarins were performed, and the effect of the substituents in the aryl moiety was evaluated. The structures possessing promising fluorescent properties were successfully synthesized via Suzuki and Sonogashira cross-coupling. The synthetic protocol was also applied for the phosphorous chemoisomer of 3-phosphonocoumarin, 1,2-benzoxaphosphorin, and their carboxylate analogues. The optical properties of the arylated and alkynylated products were experimentally determined. The obtained quantum-chemical and experimental results give the possibility for a fine tuning of the optical properties of phosphorous-containing coumarin systems by altering the substituent at its C-6 position.
Databáze: Directory of Open Access Journals
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