Aromatic substitution reactions of an arylplatinum(IV) complex
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 22,p. 2459-2462
- https://doi.org/10.1039/dt9730002459
Abstract
The synthesis of abd-trichloro-f-phenyl-ce-bis(triethylphosphine)platinum (1a) and novel reactions involving the aryl ligand of this complex are described. Lewis acid-catalysed chlorination of complex (1a) formed exclusively the p-chlorophenyl analogue leaving the aryl–metal bond intact. Taft substituent parameters for the (PEt3)2PtCl3 group, viewed as an aryl substituent, were determined from 19F n.m.r. studies on the p- and m-fluorophenyl analogues of (1a). In a novel rearrangement the complex gave phenyltriethylphosphonium trichloro(triethylphosphine)platinate (2) when heated in polar solvents. The possible mechanisms of this rearrangement are discussed.Keywords
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