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Stereochemical investigation of a kinetically labile chiral organopalladium complex in solution

Lookup NU author(s): Emeritus Professor William McFarlane

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Abstract

According to the relative locations of the R and S stereogenic centres in the diamine chelate, the kinetically labile complex (+)-[Pd{(S)- CH3CH(1-C10H6)NMe2-C 2,N}{(R,S)-Me2NCH(Me)CH(Me)NMe 2-N,N′}]ClO4 exists as an equilibrium mixture of two stereochemically distinct isomers in solution. The equilibrium ratio is temperature and solvent dependent. In d2-dichloromethane, the minor isomer observed at room temperature diminishes when the temperature is lowered to -20°C. A low temperature 2-D ROESY NMR experiment is used to identify the sterically favored major isomer in solution and hence to evaluate the efficiency of the chiral inductive effects of coordinated (S)-dimethyl(1-(α-naphthyl)ethyl)amine.

Publication metadata

Author(s): Lang H, Leung P-H, Rees NH, McFarlane W

Publication type: Article

Publication status: Published

Journal: Inorganica Chimica Acta

Year: 1999

Volume: 284

Issue: 1

Pages: 99-102

Print publication date: 15/01/1999

ISSN (print): 0020-1693

ISSN (electronic): 1873-3255

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/S0020-1693(98)00262-X

DOI: 10.1016/S0020-1693(98)00262-X

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