a b s t r a c tReactions of KPPh 2 with dimeric C,N, C,P and C,S cyclopalladated complexes (CPCs) 1aÀg containing an (sp 3 )CePd bond were investigated. The CPCs used in the study were obtained from D-camphor O-The dichloro-bridged CPCs 1a,b,d,f,g and the diacetato-bridged analog m-OAc-1d reacted with 4.5 equiv.of KPPh 2 at room temperature in THF to give either phosphines 2a,b or phosphine oxides 8d,f,g in 20 e51% yield. Complexes 1a,b,d reacted with 1 equiv. of KPPh 2 to produce the corresponding m-chloro-mdiphenylphosphido-CPCs 3a,b,d in 33e56% yield. In the reaction of CPC 1c with 4.5 equiv. of KPPh 2 , complex 4c with two PPh 2 bridging ligands was isolated in 36% yield. Structures of phosphines 2a,b, phosphine oxides 8a,d,f,g as well as complexes 3a,b,d and 4c were confirmed by 1 H, 13 C{ 1 H} and 31 P{ 1 H} NMR spectroscopy.
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