24079-32-1Relevant academic research and scientific papers
Hydrophilic pyrazine-based phosphane ligands: Synthesis and application in asymmetric hydride transfer and H2-hydrogenation of acetophenone
Nikishkin, Nicolai I.,Huskens, Jurriaan,Verboom, Willem
supporting information, p. 1857 - 1861 (2013/04/23)
Pyrazine-based hydrophilic phosphanes are useful ligands for the ruthenium- and rhodium-catalyzed hydrogenations of acetophenone under hydride transfer and dihydrogen conditions. The effect of alcohol additives on the catalytic, enantioselective aqueous h
Palladium-catalyzed cross-coupling of various phosphorus pronucleophiles with chloropyrazines: Synthesis of novel Am(iii)-selective extractants
Nikishkin, Nicolai I.,Huskens, Jurriaan,Assenmacher, Jana,Wilden, Andreas,Modolo, Giuseppe,Verboom, Willem
experimental part, p. 5443 - 5451 (2012/07/30)
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.
