Low valent lead hydrides: synthesis and reactivity

低价氢化铅：合成和反应性

• 批准号: 406694540
• 负责人: Professor Dr. Lars Wesemann
• 金额: --
• 依托单位: Abteilung für Anorganische und Analytische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/406694540?language=en
• 关键词: Low; valent; lead; hydrides; synthesis

Low valent lead hydrides: synthesis and reactivityLead hydride chemistry is much less developed in comparison to hydride chemistry of silicon, germanium and tin. P.P. Power postulated a low valent organo lead hydride as an intermediate in the formation of a diplumbyne. We reported recently the synthesis and characterization of the first low valent organolead hydride. In this project we want to develop the chemistry of low valent lead hydrides. In order to explore the influence of the steric bulkiness of the organic substituent on the stability and reactivity of lead hydrides we aim on synthesizing low valent lead hydrides with varying steric protection. Besides nucleophilic hydride substitution starting with the respective organo lead halides we also want to use the reductive elimination of hydrogen as a synthetic pathway. Therefore we will develop a preparative route for organo lead trihydrides. The chemistry of the low valent lead hydrides will be investigated in reactions with unsaturated molecules like alkenes, alkynes or isonitriles. Furthermore the coordination chemistry of lead hydrides is explored. Finally we will study the deprotonation and protonation of the low valent lead hydrides.

低瓦伦特铅氢化物：与硅，锗和锡的氢化物化学相比，合成和反应性氢化物化学的发展要差得多。 P.P. Power假定在形成外汇by的中间体中，Valent Organo Lead Hydide是一个中级。我们最近报道了第一个低谷有机氢化物的合成和表征。在这个项目中，我们希望开发低瓦伦特铅氢化物的化学反应。为了探索有机取代基的空间体积对铅氢化铅的稳定性和反应性的影响，我们旨在通过不同的空间保护合成低瓦伦特铅氢化物。除了从各自的有机铅卤化物开始的亲核氢化物取代外，我们还希望将氢的还原消除作为合成途径。因此，我们将开发有机铅三水分的准备途径。低瓦伦特铅氢化物的化学性质将在与烷烃，炔烃或异戊酸酯等不饱和分子的反应中进行研究。此外，还探索了氢化铅的配位化学。最后，我们将研究低黄体铅氢化物的去质子化和质子化。