Template Synthesis of Chiral Vicinal Diphosphinites as Their Pt^II and Pd^II Complexes

Autor:	Bergamini, Paola, Bertolasi, Valerio, Cattabriga, Michela, Ferretti, Valeria, Loprieno, Urania, Mantovani, Nicoletta, Marvelli, Lorenza
Zdroj:	European Journal of Inorganic Chemistry; March 2003, Vol. 2003 Issue: 5 p918-925, 8p
Abstrakt:	The metal-templated synthesis of a few examples of vicinal diphenylphosphinites is accomplished when the corresponding vicinal diols react with the diphenylchlorophosphane complexes cis-[MCl2(PPh2Cl)2] (M = Pt, Pd) in anhydrous THF. This process is proposed as a new synthetic route for PtII and PdII complexes of the new ligands 1,2-bis(diphenylphosphinito)butane, 2,3-bis(diphenylphosphinito)butane, and 2,3-bis(diphenylphosphinito)diisopropyl-L-tartrate, containing seven-membered chelate rings including stereogenic carbons. The new chiral phosphane-phosphinite (R)-3-(diphenylphosphanyl)-2-(diphenylphosphinito)propanol has also been obtained as a PtII six-membered chelate. The X-ray crystal structure of some of the described complexes and NMR evidence of the possibility of removing the ligands from the metal are reported. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
Databáze:	Supplemental Index
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