Tetracoordinated NiL2X2 (X = Cl, Br; L = PEt3, PEt2Ph, PEtPh2) react with CO in aq.-alc. soln., to give Ni(0) carbonyls, via reductive carbonylation. The redn. was not obsd. for L = PPh3. NiX2(diphos) {X = Cl, Br; diphos = PPh2(CH2)nPPh2 (n = 2,3)} give redn. only in basic medium with partial oxidn. of the ligand. A possible mechanism for the reductive carbonylation is discussed.
Carbon monoxide reaction towards nickel(II) tetracoordinated phosphine complexes in aqueous-alcoholic solution
VASAPOLLO, Giuseppe
1983-01-01
Abstract
Tetracoordinated NiL2X2 (X = Cl, Br; L = PEt3, PEt2Ph, PEtPh2) react with CO in aq.-alc. soln., to give Ni(0) carbonyls, via reductive carbonylation. The redn. was not obsd. for L = PPh3. NiX2(diphos) {X = Cl, Br; diphos = PPh2(CH2)nPPh2 (n = 2,3)} give redn. only in basic medium with partial oxidn. of the ligand. A possible mechanism for the reductive carbonylation is discussed.File in questo prodotto:
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