436154-19-7Relevant academic research and scientific papers
Synthesis of a neutral S-P-S pincer Pd(II) complex with the proligand PhP(C6H4-SH-2)2 [phPS2H2]. The X-ray crystal structure of [Pd(phPS2)(PPh3)]
Gómez-Benítez, Valente,Hernández-Ortega, Simón,Morales-Morales, David
, p. 256 - 260 (2003)
The reactivity of the hybrid phosphorus-sulfur proligand phPS2H2 with the trans-[Pd(Cl)2(PPh3)2] precursor has been explored. By reacting trans-[Pd(Cl)2(PPh3)2] with phPS2H2 in the presence of NEt3 as base, the complex [Pd(phPS2)(PPh3)] was obtained. A single crystal X-ray structure determination for [Pd(phPS2)(PPh3)] shown the compound to be square planar with the ligand phPS2 behaving as a S-P-S pincer ligand.
Synthesis, characterization and catalytic evaluation in the Heck coupling reactions of S-P-S pincer complexes of the type [Pd{PhP(C6H4-2-S)2}(PAr3)]
Gómez-Benítez, Valente,Hernández-Ortega, Simón,Toscano, Rubén A.,Morales-Morales, David
, p. 2128 - 2138 (2008/10/09)
A series of palladium complexes of the type [Pd(phPS2)(PAr3)] (phPS2) = [PhP(C6H4-2-S)2]2- have been synthesized in good yields and their crystal structures determined. Heck coupling reactions were carried out using the [Pd(phPS2)(PPh3)] (1), [Pd(phPS2){P(C6H4-4-Cl)3}] (2), [Pd(phPS2){P(C6H4-4-F)3}] (3), [Pd(phPS2){P(C6H4-4-CF3) 3}] (4), [Pd(phPS2){P(C6H4-4-Me)3}] (5) and [Pd(phPS2){P(C6H4-4-OMe)3}] (6) complexes as catalyst precursors in order to examine the potential effect of the para-substituted triarylphosphines in the reaction of bromobenzene and styrene.
PPh(2-C6H4S)2 as a pincer ligand in nickel(II) and palladium(II) complexes - X-ray structure of [Ni{PPh(C6H4S)2}(PPh2Me)], [Pd2(μ-dppe){PPh (C6H4S)2}2] and [Ni{PPh(C6H4S)2}]2
Cerrada, Elena,Falvello, Larry R.,Hursthouse, Michael B.,Laguna, Mariano,Luqui?n, Asuncio?n,Pozo-Gonzalo, Cristina
, p. 826 - 833 (2007/10/03)
The phosphanylthiol PPh(2-C6H4SH)2 reacts with the NiII and PdII complexes [MCl2L2] in the presence of NaOEt to give the mononuclear derivatives [M{PPh(C6H4S)2}L] [M = Ni, L = PPh3 (1), PPh2Me (2); M = Pd, L = PPh3 (3)]. The analogous reaction starting with complexes containing bidentate ligands [MX2(L-L)] produces different results depending on the ligand used. The complexes [M{PPh(C6H4S)2}(dppm)] [M = Ni (4), Pd (5)], with an unligated phosphorus atom in the diphosphane are obtained with bis(diphenylphosphanyl)methane (dppm), while the dinuclear complexes [M2(μ-dppe){PPh(C6H4S)2}] [M = Ni (6), Pd (7)] are isolated in the case of 1,2-bis(diphenylphosphanyl)-ethane (dppe). With 1,10-phenanthroline (phen), the complexes [M{PPh(C6H4S)2}(phen)] [M = Ni (8), Pd (9)] are obtained, but when 2,2′-bipyridine is used the dinuclear compounds [M{PPh(C6H4S)2}]2 [M = Ni (10), Pd (11)] are isolated instead. Complexes 10 and 11, which can be obtained starting from NiCl2 or [PdCl2(NCPh)2] respectively, afford complexes 1-7 when treated with the respective phosphanes in the appropriate stoichiometries. The structures of 2, 7 and 10 have been confirmed by X-ray analysis.
