Claudia M. P. Kronenburg

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Featured researches published by Claudia M. P. Kronenburg.

Polyhedron | 2000

Structure and Reactivity of Cyanocuprates Containing the Monoanionic C,N-Chelating Aminoaryl Ligand [C6H4CH2NMe2-2]

Claudia M. P. Kronenburg; Johann T. B. H. Jastrzebski; Gerard van Koten

Abstract The 2:1 cyanocuprate [Ar2Cu(CN)Li2(THF)4]∞ (1, Ar=[C6H4CH2NMe2-2]−) is obtained as the only product in the reaction of two equivalents of ArLi with one equivalent of CuCN in tetrahydrofuran (THF) at −78°C. The X-ray crystal structure reveals an ionic polymeric chain consisting of consecutive [Ar2Cu]− and [(THF)2LiCNLi(THF)2]+ units. Its composition in THF solution has been investigated.

Tetrahedron Letters | 2002

Unexpected formation of aryl-cyanides during the oxidative decomposition of aryl-cyanocuprates. Transfer of a non-transferable group?

Claudia M. P. Kronenburg; Catelijne H. M. Amijs; Peter Wijkens; Johann T. B. H. Jastrzebski; Gerard van Koten

Oxidative decomposition of cyanocuprates of the type CuLi(CN)Ar (Ar = [C6H4(CH2NMe2)-2]-, 1a) or type CuLi2(CN)Ar2(1b) shows the unexpected formation of aryl-cyanides in up to 30% yield.

Journal of the American Chemical Society | 1998

A MODEL STRUCTURE FOR THE RESTING STATE OF CYANOCUPRATE REAGENTS R2CU(CN)LI2. THE X-RAY CRYSTAL STRUCTURE OF AR2CU(CN)LI2(THF)4

G. van Koten; Claudia M. P. Kronenburg; Johann T. B. H. Jastrzebski; A. L. Spek

Angewandte Chemie | 1997

Determination of the degree of aggregation of organocopper compounds by cryoscopy in tetrahydrofuran

Andreas Gerold; Johann T. B. H. Jastrzebski; Claudia M. P. Kronenburg; Norbert Krause; Gerard van Koten

Journal of the American Chemical Society | 2002

The First Homologous Series of Self-Assembled Aryl Bromoand Aryl Cynanocuprates, -Argentates, and -Aurates; MLi2XAr2 (M=CuI, AGI, AUI; X = Br, C=N; Ar = [C6H4CH2N(Et)CH2CH2NEt2-2]-)

Claudia M. P. Kronenburg; J.T.B.H. Jastrzebski; J. Boersma; Martin Lutz; Anthony L. Spek; G. van Koten

Chemistry: A European Journal | 2005

Formation of organolithium hetero-aggregates [Li4Ar2(nBu)2] (Ar=C6H4CH(Me)NMe2-2) during the directed ortho-lithiation of [1-(dimethylamino)ethyl]benzene.

Claudia M. P. Kronenburg; Evelien Rijnberg; Johann T. B. H. Jastrzebski; Huub Kooijman; Martin Lutz; Anthony L. Spek; Robert A. Gossage; Gerard van Koten

Angewandte Chemie | 1997