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• 150-60-7 dibenzyl disulphide 
• 500128-41-6 bis(3-phenylpropyl)[1,2-bis(diphenylphosphanyl)ethane]palladium 
• 3492-64-6 sodium benzylmercaptide 
• 1663-45-2 1,2-bis-(diphenylphosphino)ethane 
• 19978-61-1 (1,2-bis(diphenylphosphanyl)ethane)dichloridopalladium(II) 

Relevant academic research and scientific papers

[1,2-bis(diphenylphosphino)ethane-P,P′]- bis(α-toluenethiolato-S)palladium(II), [Pd{Ph2P(CH2)2PPh2}(SCH2Ph)2]

The title compound, [Pd(C7H7S)2 (C26H24P2)], is a mononuclear palladium(II) complex. The molecule possesses a crystallographic twofold axis and the Pd atom is four-coordinated by two phosphine P atoms and two S atoms from PhCH2S- ligands, and has a distorted square-planar geometry. The Pd - S and Pd - P distances are 2.360 (2) and 2.277 (2) angstrom, respectively.

(Phenylalkyl)palladium complexes containing β-hydrogen atoms: Synthesis and characterization of [PdR2(dppe)], [PdR(SPh)(dppe)] (R = CH2CH2Ph, CH2CH2CH2Ph, CH2CHMePh), and [Pd(CH2CH2CH2Ph)X(dppe)] (X = I, Br, Cl)

Reactions of HgR2 (R = CH2CH2Ph, 1a; CH2CH2CH2Ph, 1b; CH2CHMePh, 1c) (prepared from HgCl2 and the requisite Grignard compounds) with lithium in toluene afforded (phenylalkyl)lithium compounds LiR (2a-c) in yields of between 64 and 81%. At -30 °C, they react with [PdCl2(dppe)] [dppe = 1,2-bis(diphenylphosphanyl)ethane] yielding bis(phenylalkyl)palladium(II) complexes [PdR2(dppe)] (3a-c) which were isolated (Tdec = 159 °C, 3a; 80 °C, 3b; 145 °C, 3c) and fully characterized by 1H, 13C, and 31P NMR spectroscopy. Single-crystal X-ray diffraction of [Pd(CH2CH2Ph)2(dppe)] (3a) showed that the palladium atom is square-planar coordinated by two 2-phenylethyl ligands and the dppe ligand. The two CH2CH2Ph ligands exhibite nearly a fully staggered conformation. Overall, a good approximation for the complex is that it has C2 symmetry with the C2 axis defined by the Pd atom and the midpoint of the central C-C bond of the dppe ligand. Bis(phenylalkyl)palladium complexes 3a and 3b reacted with PhSH in a 1:1 ratio yielding [PdR(SPh)(dppe)] (R = CH2CH2Ph, 5a; CH2CH2CH2Ph, 5b), whereas in the case of complex 3c, besides [Pd(CH2CHMePh)(SPh)(dppe)] (5c), a considerable amount of [Pd(SPh)2(dppe)] (6a) was formed. Reactions of 3b with the less acidic alkanethiols iPrSH and tBuSH resulted in the formation of [Pd(CH2CH2CH2Ph)(SR′)(dppe)] (R′ = iPr, 5d; tBu, 5e) along with smaller amounts of [Pd(SR′)2(dppe)] (6) and [Pd(dppe)2] (7). Furthermore, complex 3b was found to react in THF with disulfides R′SSR′ (R· = Ph, Bz, Me), yielding [Pd(CH2CH2CH2Ph)(SR′)(dppe)] (R′ = Ph, 5b; Bz, 5f, Me, 5g) with small amounts (3-13%) of [Pd(SR′)2(dppe)] (6) as side products. The corresponding reaction with MeSe-SeMe afforded [Pd(CH2CH2CH2Ph)(SeMe)(dppe)] (8a) and 3% of [Pd(SeMe)2(dppe)] (9a) and [Pd(dppe)2] (7). Reactions of complex 5b with MeI and H2C=CHCH2Br in tetrahydrofuran and with neat H2C=CHCH2Cl readily proceeded at -30 °C to give halo(3-phenylpropyl)palladium complexes [Pd(CH2CH2CH2Ph)X(dppe)] (X = I, 10a; Br, 10b; Cl, 10c). They were isolated as pale yellow powdery/microcrystalline substances and fully characterized by 13C and 31P NMR spectroscopy. Solutions of complexes 10 in THF decompose rapidly above -30 °C. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.

Syntheses and spectroscopic properties of palladium(II) complexes with bidentate phosphine and thiolate ligands. X-ray crystal structure of [Pd(SCH2Ph)2{Ph2P(CH2) 3PPh2}]

By the reactions of Pd2+, thiolate (PhCH2S- or pdt) and dppe or dppp [pdt = SCH2CH2CH2S2-, dppe = 1,2-bis(diphenylphosphino)ethane, dppp = 1,3-bis(diphenylphosphino)propane] in MeOH, the following complexes, [Pd(SCH2Ph)2(dppe)] (1), [Pd(SCH2Ph)2(dppp)] (2) and [Pd(pdt)(dppp)] (3), were prepared. The crystal structure of 2 was analysed by single-crystal X-ray diffraction. The palladium atom is tetra-coordinated with a distorted square-planar geometry of two phosphorus and two sulfur atoms. Their IR, 31P and 1H NMR spectra are reported.