Preparation and properties of novel palladium compounds containing a thiomethoxymethyl group |
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| Authors: | Gohei Yoshida Hideo Kurosawa Rokuro Okawara |
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| Affiliation: | Department of Applied Chemistry, Osaka University. Suita. Osaka Japan |
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| Abstract: | Oxidative addition of chloromethyl methyl sulfide to Pd(Ph3P)4 provided a good yield of Pd(Ph3P)2(CH2SCH3)Cl (I) whose 1H NMR and molecular weight data showed that dissociation of either the phosphine or the chloride ligand occurs in CH2Cl2 solution. In accord with such equilibria, repeated crystallization of I from CH2Cl2 and Et2O gradually removed the triphenylphosphine set free in these solvents to give the monomeric complex. Pd(Ph3P)(CH2SCH3)Cl (III), while treatment of 1 with NH4PF6 in CH2Cl2 and acetone gave the cationic complex [Pd(Ph3P)2(CH2SCH3]PF6 (II),1H NMR spectra of II and III are discussed in terms of a three-membered chelate structure arising from coordination of sulfur with palladium |
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