Biricik, NerminKayan, CezmiGumgum, BahattinFei, ZhaofuScopelliti, RosarioDyson, Paul J.Gurbuz, Nevin2024-08-042024-08-0420100020-16931873-3255https://doi.org/10.1016/j.ica.2009.12.020https://hdl.handle.net/11616/94984Four new bis(phosphino) amine ligands (Ph2P)(2)N-C6H3-R, where R = 3,5-OMe (1), 2,5-OMe (2), 2,4-OMe (3) or 3,4-OMe (4), were prepared via aminolysis of the corresponding dimethoxyanilines with 2 equiv. of diphenylphosphine chloride in the presence of triethyl amine. Oxidation of these ligands with aqueous H2O2, elemental S-8 or Se powder afforded the corresponding chalcogen oxides 1a-4a, sulfides 1b-4b and selenides 1c-4c in good yields. Reaction of 1-4 with [MCl2(cod)] (M = Pt, Pd; cod = cycloocta-1,5-diene) in equimolar ratios afforded cis-[MCl2{(Ph2P)(2)N-C6H3-R}] (M = Pt; R = 3,5-OMe 1d, R = 2,5-OMe 2d, R = 2,4-OMe 3d, and R = 3,4-OMe 4d. M = Pd; R = 3,5-OMe 1e, R = 2,5-OMe 2e, R = 2,4-OMe 3e, and R = 3,4-OMe 4e). Similarly, reaction of [Cu(CH3CN)(4)]PF6 with the 1-4 in 1:2 ratio gave [Cu{(Ph2P)(2)N-C6H3-R}(2)]PF6 (R = 3,5-OMe 1f, 2,5-OMe 2f, 2,4-OMe 3f and 3,4-OMe 4f). All new compounds were fully characterized by spectroscopy and elemental analysis and the molecular structures of seven representative compounds were determined by single-crystal X-ray crystallography. In addition, the palladium complexes were investigated as pre-catalysts in C-C coupling reactions. (C) 2009 Elsevier B.V. All rights reserved.eninfo:eu-repo/semantics/closedAccessAminophosphinesChalcogenidesX-ray structuresCatalysisC-C coupling reactionsArticle36351039104710.1016/j.ica.2009.12.0202-s2.0-77249140404Q2WOS:000275233500030Q2