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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 18, Number 11
BKCSDE 18(11)
November 20, 1997

Title	Formation and Properties of Dimethylamine Complexes of Palladium(Ⅱ) Having trans Phosphorus Spanning Terdentate Ligands
Author	Sang Yeoul Ryu, Wongkang Yang, Hoon Sik Kim, Soonheum Park*
Keywords
Abstract	Dimethylamine complexes of palladium(Ⅱ) [(PCP)Pd(NHMe2)](OTf) (PCP = 2,6-(R2PCH2)2C6H3); R = Ph (1), R = Cy (2)), have been prepared from the reaction of (PCP)Pd(OTf) and dimethylamine. The complex 1 is stable both in solution and in the solid state, while 2 is stable only in solution in the presence of dimethylamine although the formation of 2 in solution is quantitative by NMR Spectroscopy. A solution NMR spectroscopic study shows that dimethylamine favors over carbon monoxide in the coordination sphere of palladium(Ⅱ) having rigid terdentate ligands. The complexes 1 and 2 in chlorinated solvents undergo a chlorine abstract reaction yielding Pd(2,6-(R2PCH2)2C6H3)Cl in the presence of a base such as dimethylamine and DABCO (diazabicyclooctane), in which a transient dimethylamido palladium(Ⅱ) species likely involves.
Page	1183 - 1185
Full Text	PDF

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