Issue 0, 1970

Improved synthesis of mononuclear platinum(0) compounds which contain tertiary phosphines and carbon monoxide

Abstract

Pt(CO)L3 compounds (L = PPh3 and PPh2Me) have been obtained in good yields by reduction of an alkali chloroplatinite in the presence of 4–5 mol. of the phosphine and of carbon monoxide, or from compounds PtL4(L = PPh3 and PPh2Me) and PtL3(L = PPh3 and PPh2Ph·CH2) and carbon monoxide. Pt(CO)2L2 compounds (L = PPh3, PPh2Et, PPh2Pri, and PPh2Ph·CH2) have been similarly obtained by reduction of a chloroplatinite in the presence of carbon monoxide and 2 mol. of the phosphine.

In solution in the presence of carbon monoxide the Pt(CO)L3 and Pt(CO)2L2 species are in equilibrium; increasing steric requirements of the group R of the ligand PPh2R increased the stability of the Pt(CO)2L2 compounds.

Article information

Article type
Paper

J. Chem. Soc. A, 1970, 1542-1546

Improved synthesis of mononuclear platinum(0) compounds which contain tertiary phosphines and carbon monoxide

P. Chini and G. Longoni, J. Chem. Soc. A, 1970, 1542 DOI: 10.1039/J19700001542

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