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4 Dimethylaminopyridine

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Wolfgang Steglich – One of the best experts on this subject based on the ideXlab platform.

  • esterification of carboxylic acids with dicyclohexylcarbodiimide 4 Dimethylaminopyridine tert butyl ethyl fumarate
    Organic Syntheses, 2003
    Co-Authors: B Neises, Wolfgang Steglich
    Abstract:

    Esterification of carboxylic acids with dicyclohexylcarbodiimide/4Dimethylaminopyridine: tert-butyl ethyl fumarate reactant: 45.59 g (0.22 mol) of dicyclohexylcarbodiimide product: tert-butyl ethyl fumarate Keywords: esterification, of dicarboxylic acids; dichloromethane (methylene chloride); dicyclohexylcarbodiimide; dicyclohexylcarbodiimide

  • Organic Syntheses – Esterification of Carboxylic Acids with Dicyclohexylcarbodiimide/4Dimethylaminopyridine: tert‐Butyl Ethyl Fumarate
    Organic Syntheses, 2003
    Co-Authors: B Neises, Wolfgang Steglich
    Abstract:

    Esterification of carboxylic acids with dicyclohexylcarbodiimide/4Dimethylaminopyridine: tert-butyl ethyl fumarate reactant: 45.59 g (0.22 mol) of dicyclohexylcarbodiimide product: tert-butyl ethyl fumarate Keywords: esterification, of dicarboxylic acids; dichloromethane (methylene chloride); dicyclohexylcarbodiimide; dicyclohexylcarbodiimide

B Neises – One of the best experts on this subject based on the ideXlab platform.

  • esterification of carboxylic acids with dicyclohexylcarbodiimide 4 Dimethylaminopyridine tert butyl ethyl fumarate
    Organic Syntheses, 2003
    Co-Authors: B Neises, Wolfgang Steglich
    Abstract:

    Esterification of carboxylic acids with dicyclohexylcarbodiimide/4Dimethylaminopyridine: tert-butyl ethyl fumarate reactant: 45.59 g (0.22 mol) of dicyclohexylcarbodiimide product: tert-butyl ethyl fumarate Keywords: esterification, of dicarboxylic acids; dichloromethane (methylene chloride); dicyclohexylcarbodiimide; dicyclohexylcarbodiimide

  • Organic Syntheses – Esterification of Carboxylic Acids with Dicyclohexylcarbodiimide/4Dimethylaminopyridine: tert‐Butyl Ethyl Fumarate
    Organic Syntheses, 2003
    Co-Authors: B Neises, Wolfgang Steglich
    Abstract:

    Esterification of carboxylic acids with dicyclohexylcarbodiimide/4Dimethylaminopyridine: tert-butyl ethyl fumarate reactant: 45.59 g (0.22 mol) of dicyclohexylcarbodiimide product: tert-butyl ethyl fumarate Keywords: esterification, of dicarboxylic acids; dichloromethane (methylene chloride); dicyclohexylcarbodiimide; dicyclohexylcarbodiimide

Ingo Pantenburg – One of the best experts on this subject based on the ideXlab platform.

  • silver compounds in synthetic chemistry part 8 complexes of perfluoroorgano silver i derivatives with 4 Dimethylaminopyridine dmap
    Zeitschrift für anorganische und allgemeine Chemie, 2014
    Co-Authors: Silke Kremer, Ingo Pantenburg, Wieland Tyrra
    Abstract:

    Attempted syntheses of AgRf·DMAP were performed using the established route starting from AgF and Me3SiRf (Rf = CF3, C2F5, C6F5) followed by the addition of DMAP. Unexpectedly, reactions with perfluoroalkylsilver(I) derivatives yielded products, which underwent known equilibria, while exclusively the pentafluorophenyl derivative exhibits its zwitterionic nature in solution and in the solid state. Moreover, both perfluoroalkyl derivatives investigated decomposed slowly but more or less selectively even at –20 °C in solution: AgC2F5·DMAP mainly into AgOCOCF3 (probably under the influence of moisture) and AgCF3·DMAP mainly into the unprecedented derivative 3-trifluoromethyl-4Dimethylaminopyridine. The molecular structure of AgC6F5·DMAP was elucidated showing a twist arrangement of the aromatic rings quite unusual for linear coordinated species.

  • syntheses and crystal structures of bis 4 Dimethylaminopyridine group 12 trifluoroacetates m ococf3 2 2dmap m zn cd hg
    Journal of Fluorine Chemistry, 2003
    Co-Authors: Wieland Tyrra, Dieter Naumann, Ingo Pantenburg
    Abstract:

    Abstract Bis(4Dimethylaminopyridine) group 12 trifluoroacetates—M(OCOCF 3 ) 2 ·2DMAP (M=Zn, Cd, Hg) were prepared in quantitative yields from the anhydrous metal trifluoroacetates and DMAP. All compounds crystallize in the triclinic space group P 1 (no. 2) with two molecules per unit cell. While Zn(OCOCF 3 ) 2 ·2DMAP is built up by well-separated tetrahedral units exhibiting strongly covalent ZnO bonds to monodentate trifluoroactate groups, Cd(OCOCF 3 ) 2 ·2DMAP and Hg(OCOCF 3 ) 2 ·2DMAP form dimeric units. The metal centers are distorted octahedrally surrounded by two axial DMAP ligands, two ionic bridging and one chelating trifluoroacetate group.

  • Syntheses and crystal structures of bis(4Dimethylaminopyridine) group 12 trifluoroacetates — M(OCOCF3)2·2DMAP (M=Zn, Cd, Hg)
    Journal of Fluorine Chemistry, 2003
    Co-Authors: Wieland Tyrra, Dieter Naumann, Ingo Pantenburg
    Abstract:

    Abstract Bis(4Dimethylaminopyridine) group 12 trifluoroacetates—M(OCOCF 3 ) 2 ·2DMAP (M=Zn, Cd, Hg) were prepared in quantitative yields from the anhydrous metal trifluoroacetates and DMAP. All compounds crystallize in the triclinic space group P 1 (no. 2) with two molecules per unit cell. While Zn(OCOCF 3 ) 2 ·2DMAP is built up by well-separated tetrahedral units exhibiting strongly covalent ZnO bonds to monodentate trifluoroactate groups, Cd(OCOCF 3 ) 2 ·2DMAP and Hg(OCOCF 3 ) 2 ·2DMAP form dimeric units. The metal centers are distorted octahedrally surrounded by two axial DMAP ligands, two ionic bridging and one chelating trifluoroacetate group.