Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 10, Issue 28, Pages 5443-5451Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ob25787d
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Funding
- EU ACSEPT (Actinide reCycling by SEParation and Transmutation) project [211267]
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Palladium-catalyzed cross-coupling of (di)chloropyrazines with phosphorus pronucleophiles in the presence of a base gave the phosphorylated pyrazines in 81-95% yields. Based on this methodology a series of appropriately functionalized pyrazines was prepared as potential extractants of trivalent cations from highly acidic nuclear waste. A few hydrophilic derivatives exhibited a very good selectivity for Am3+ over Eu3+ with separation factors up to 40 at pH 1 at 0.01 mol L-1 ligand concentration.
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