A Highly Reduced Magnesium Dicobalt Complex for the Hydrogenation of Tri- and Tetra-Substituted Alkenes

IF 2.9 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Organometallics Pub Date : 2025-09-13 DOI:10.1021/acs.organomet.5c00246

Martin Gawron, , , Johannes Eder, , , Xaver Weichselgartner, , , Ruth M. Gschwind, , and , Robert Wolf*,

引用次数: 0

Abstract

The reaction of [K(thf)_0.33][Co(η⁴-cod)₂] (E; cod = 1,5-cyclooctadiene) with 0.5 equiv of MgCl₂ led to the isolation of the magnesium dicobalt complex Mg[Co(η⁴-cod)₂]₂ (1). Complex 1 forms a tight ionic complex in the solid state and in toluene solution due to electrostatic interactions between the Mg²⁺ cation and the [Co(η⁴-cod)₂]⁻ anions. The complex is a successful precatalyst for the hydrogenation of sterically challenging tri- and tetra-substituted alkenes, surpassing the catalytic capabilities of related alkali metal and β-diketiminate magnesium complexes.

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用于三取代烯烃和四取代烯烃加氢的高还原二钴镁配合物

[K(thf)0.33][Co(η - 4-cod)2] （E; cod = 1,5-环二烯）与0.5当量的MgCl2反应，分离得到了二钴镁络合物Mg[Co(η - 4-cod)2]2(1)。配合物1在固体和甲苯溶液中由于Mg2+阳离子和[Co(η - 4-cod)2]−阴离子之间的静电相互作用而形成紧密的离子配合物。该配合物是具有空间挑战性的三取代烯烃和四取代烯烃加氢的成功预催化剂，超过了相关碱金属和β-二氯胺酸镁配合物的催化能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Organometallics 化学-无机化学与核化学

CiteScore

5.60

自引率

7.10%

发文量

382

审稿时长

1.7 months

期刊介绍： Organometallics is the flagship journal of organometallic chemistry and records progress in one of the most active fields of science, bridging organic and inorganic chemistry. The journal publishes Articles, Communications, Reviews, and Tutorials (instructional overviews) that depict research on the synthesis, structure, bonding, chemical reactivity, and reaction mechanisms for a variety of applications, including catalyst design and catalytic processes; main-group, transition-metal, and lanthanide and actinide metal chemistry; synthetic aspects of polymer science and materials science; and bioorganometallic chemistry.