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Redox Reactions Oxidative Addition and Reductive Elimination

Redox Reactions Oxidative Addition and Reductive Elimination [Pg.24]

Coordinatively unsaturated transition metal complexes can in general add neutral or anionic nucleophiles. Oxidative addition to coordinatively unsaturated transition metal compounds has opened up undreamt of synthetic possibilities [18]. This reaction and its reverse — reductive elimination — are formally described by the following equilibrium  [Pg.24]

In general, the bonds of small covalent molecules XY (H-X, C-X, H-H, C-H, C-C, etc.) add to a low oxidation state transition metal, whose oxidation state then increases by two units. The reaction is mainly observed with complexes of d and d ° transition metals (e.g., Fe , Ru , Os , Rh, Ir, Ni , Pd , Pt , Pd , Pt ). The reaction can take two possible courses  [Pg.24]

1) The molecules being added split into two r/ ligands, which are both formally anionically bound to the metal center. One of the most thoroughly investigated compounds is a square-planar iridium complex whose central atom gives up two electrons and is oxidized to Ir (Eq. 2-32). [Pg.24]

2) The molecules being added contain multiple bonds and are bound as tf ligands, without bond cleavage. The resulting complexes contain three-membered rings, as shown in Equations 2-33 and 2-34. [Pg.24]




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1,4 - Addition-eliminations 670 1,2-ADDITIONS

ADDITION AND ELIMINATION REACTIONS

Addition and Elimination

Addition-elimination

Addition-oxidation reactions

Elimination 1,6-addition, eliminative

Elimination oxide

Elimination reactions reductive

Elimination-addition reactions

Oxidants and reductants

Oxidation and reduction

Oxidation elimination

Oxidation oxidative addition reaction

Oxidative -elimination

Oxidative Addition and Redox Reactions

Oxidative addition reactions

Oxidative redox

Reaction oxidation-reduction

Redox addition

Redox oxidations

Redox reactions (oxidation-reduction

Redox reactions oxidation and reduction

Redox reactions reduction

Redox reductions

Reduction and Elimination Reactions

Reduction and oxidation reaction

Reductive addition

Reductive-addition reactions

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