The Stabilisation of Non-Classical Boron Architectures by N-Heterocyclic Carbenes: Synthesis and Potential Applications

N-杂环卡宾对非经典硼结构的稳定化：合成和潜在应用

• 批准号: 410908941
• 负责人: Dr. René Frank
• 金额: --
• 依托单位: Institut 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 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/410908941?language=en
• 关键词: Stabilisation; Non; Classical; Boron; Architectures

The project is based on our previously published boryl anions of type NHC-B(CN)2- (NHC = N-heterocyclic carbene). Since the chemistry of the well accessible boryl anions with boron centred nucleophilicity is currently unexplored, the proposal is aimed to such investigation.i) Reactions with hard / soft electrophiles of variable steric bulkAmbident behaviour (B- or N-nucleophilicity) of the boryl aninons can be expectedii) Preliminary experiments from our laboratories gave boraketenimines [also accessible acc. to i)] besides the mentioned boryl anions as a result of similar precursors. Additionallythe synthesis of boraketens is attempted.iii) Boraketenes and boraketenimines obtained will in turn be investigated for their further reactivity. Cycloaddition reactions will lead to boracycles displaying interesting luminescent behaviour. Additionally the incorporation of NHC-containinh boron moieties into metal complexes can be envisaged. With carefully chosen substrates catalytic cycles can be expected.

该项目是基于我们以前发表的NHC-B（CN）2-（NHC = N-杂环卡宾）型硼基阴离子。由于具有硼中心亲核性的易于获得的硼基阴离子的化学性质目前尚未探索，i）与具有可变空间体积硬/软亲电试剂的反应可以预期硼基阴离子的（B-或N-亲核性）ii）我们实验室的初步实验得到硼烯酮亚胺[也可根据i）获得]除了作为类似前体的结果的所述硼基阴离子之外。此外，还尝试了硼杂烯酮的合成。iii）所得到的硼杂烯酮和硼杂烯酮亚胺将依次研究它们的进一步反应性。环加成反应将导致硼杂环显示有趣的发光行为。此外，可以设想将含NHC的硼部分掺入金属络合物中。通过仔细选择底物，可以预期催化循环。