The reactions between the cyclopalladated chloro-dimers [Pd(Ln)(μ-Cl)2] (HL1 = 2,6-dimethylazobenzene, HL2 = 4,4′-dimethoxyazobenzene, HL3 = 4-ethoxy-4′-heptanoylazobenzene, HL4 = 5-(1-hexyl)-2-[4′-(1-undecyloxy)phenyl]pyrimidine) and the optically pure K[(R)-(+)-MC] salt ((R)-(+)-MC =(R)-(+)-bicyclo[2,2,1]-heptan-2-onate-3-(hydroxymethylene)-1,7,7′-trimethyl) give the corresponding mononuclear Pd(Ln)[(R)-(+)-MC] complexes 1-4. NMR and circular dichroism data account for diastereoisomeric mixtures which consist of two complexes differing in the 7,7′ dimethyl bridge being above or below the palladium coordination plane. The relative abundance of diastereoisomers has been estimated by NMR spectroscopy.

Palladium(II) complexes with the cyclometalated C-Y-N(sp2)-Pd-C(sp2) ring (Y = N, C) and (R)-(+)- hydroxymethylenecamphor / E. Cesarotti, F. Neve, D. Pucci, M. Ghedini. M. Grassi. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - 438:3(1992), pp. 343-351.

Palladium(II) complexes with the cyclometalated C-Y-N(sp2)-Pd-C(sp2) ring (Y = N, C) and (R)-(+)- hydroxymethylenecamphor

E. Cesarotti
Primo
;
1992

Abstract

The reactions between the cyclopalladated chloro-dimers [Pd(Ln)(μ-Cl)2] (HL1 = 2,6-dimethylazobenzene, HL2 = 4,4′-dimethoxyazobenzene, HL3 = 4-ethoxy-4′-heptanoylazobenzene, HL4 = 5-(1-hexyl)-2-[4′-(1-undecyloxy)phenyl]pyrimidine) and the optically pure K[(R)-(+)-MC] salt ((R)-(+)-MC =(R)-(+)-bicyclo[2,2,1]-heptan-2-onate-3-(hydroxymethylene)-1,7,7′-trimethyl) give the corresponding mononuclear Pd(Ln)[(R)-(+)-MC] complexes 1-4. NMR and circular dichroism data account for diastereoisomeric mixtures which consist of two complexes differing in the 7,7′ dimethyl bridge being above or below the palladium coordination plane. The relative abundance of diastereoisomers has been estimated by NMR spectroscopy.
Settore CHIM/03 - Chimica Generale e Inorganica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/185988
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