SYNTHESIS OF SOME 1-FLUOROARYL-1,3-DIKETONES, BIS(1,3-DIKETONATO)COPPER(II), BIS(1,3-DIKETONATO)DIOXOURANIUM(VI), AND THEIR ELECTROPHILIC SUBSTITUTION REACTIONS

Autor:	Ragini Gupta, Chandra K. Oza, Ranjana Tiwari, Vijai N. Pathak, Sarita Chaudhary
Rok vydání:	2002
Předmět:	chemistry.chemical_classification Ketone Ethyl acetate Halogenation Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound Electrophilic substitution chemistry Nitration Electrophile Proton NMR Organic chemistry Chelation Physical and Theoretical Chemistry
Zdroj:	Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 32:155-170
ISSN:	1532-2440 0094-5714
DOI:	10.1081/sim-120013154
Popis:	Some 1-fluoroaryl-1,3-diketones were prepared by treatment of methyl 1-fluoroaryl ketone with ethyl acetate, ethyl fluoroacetate or ethyl pentafluoropropionate in the presence of sodamide which were characterized in the form of their copper chelates. 1-Substituted-aryl-1,3-diketones (1a-h) in turn on treatment with uranyl acetate afforded corresponding bis(1,3-diketonato) dioxouranium(VI) (3a-f). Bis(1,3-diketonato)dioxouranium(VI) (3a-f) when subjected to electrophilic bromination or nitration reactions yielded bis(2-bromo-1,3-diketonato)dioxouranium(VI) (4a-e) and bis(2-nitro-1,3-diketonato)dioxouranium(VI) (5a-e), respectively. The bonding mode of the ligands to the uranium ion has also been determined from IR and 1H NMR spectral studies.
Databáze:	OpenAIRE
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