Transition-Metal-Catalysed Borane Dehydrocoupling and its Mechanistic Implications

过渡金属催化硼烷脱氢偶联及其机理意义

• 批准号: 242159665
• 负责人: Professor Dr. Holger Braunschweig
• 金额: --
• 依托单位: Institut für Anorganische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/242159665?language=en
• 关键词: Transition; Metal; Catalysed; Borane; Dehydrocoupling

The search for more efficient processes for the preparation of useful materials is perpetual.Thereby, the design of chemical syntheses that limit waste products is a particularly vibrant field of research, and one class of reactions is near the pinnacle of the low-waste ideal: dehydrocoupling. Dehydrocoupling reactions are a way to create bonds between elements by eliminating only hydrogen gas from the mixture. Although not completely waste-free, the by-product H2 is easily removed, can be used for other purposes and is much lighter than the product molecules. Our preliminary work on applying this concept to the synthesis of dibo-ranes(4), reagents widely used in organic synthesis, led to their catalytic synthesis with high efficiency. This proposal aims to expand these results in order to widen the scope of the reaction to different substrates, to use the new reaction to prepare boron-containing polymers with interesting properties, and to investigate the mechanism of the reaction from a molecular viewpoint.

寻找更有效的有用材料的过程是永久的。据此，限制废物产物的化学合成的设计是一个特别充满活力的研究领域，一类反应在低垃圾理想的顶峰附近：脱氢相耦合。脱氢相联反应是通过消除混合物中的氢气之间在元素之间建立键的一种方式。尽管并非完全无垃圾，但副产品H2很容易去除，可用于其他目的，并且比产品分子轻得多。我们将该概念应用于DIBO-RANES的合成（4）的初步工作，该试剂广泛用于有机合成，导致其催化合成的效率很高。该建议旨在扩大这些结果，以扩大对不同底物的反应范围，使用新反应以具有有趣特性的新反应制备含硼的聚合物，并从分子观点研究反应的机理。

项目成果

Aryldihydroborane Coordination to Iridium and Osmium Hydrido Complexes

芳基二氢硼烷与铱和锇氢配合物的配位

• DOI: 10.1021/acs.organomet.5b00788
• 发表时间: 2015
• 期刊: Organometallics
• 影响因子: 2.8
• 作者: N. Arnold;S. Mozo;U. Paul;U. Radius;H. Braunschweig
• 通讯作者: H. Braunschweig