Some reactions of 2,4-diphosphaplatinocycles.

Article abstract of DOI:10.1016/0022-328X(96)06192-X

The structure of the ring insertion product 1b obtained from the reaction of [Pt(dppm)(CH₂Cl)₂] (dppm = Ph₂PCH₂PPh₂) with triphenylphosphine has been confirmed by X-ray crystallography of the hexafluorophosphate salt. The bis-chelate complex [Pt(CH₂PPh₂CH₂PPh₂)₂]Cl₂ (IIIa) has been isolated from the reaction of [Pt(dppm)(CH₂Cl)₂] (II) with diphenylphosphine in dichloromethane. Iodination of Ib leads to selective cleavage of the chloromethyl group, and subsequent iodide abstraction with silver ion gives a solvated cation (V). The structures of the hexafluorophosphate salts of the bis-chelate IIIb and of the solvated cation V have been determined by X-ray diffraction.