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

该项目基于我们之前发表的NHC- b (CN)2- （NHC = n -杂环碳）型硼基阴离子。由于目前尚未探索具有硼中心亲核性的硼基阴离子的化学性质，因此该建议旨在进行此类研究。（1)与可变空间体积的硬/软亲电试剂反应（B-亲和性或n -亲和性）的硼基阴离子的隐性行为是可以预期的）。(2)我们实验室的初步实验给出了硼基胺[也可获取]。除了上述的硼基阴离子外，由于类似的前体。此外，还尝试了硼酸盐的合成。iii)获得的硼砂烯和硼砂烯胺将被进一步研究其反应性。环加成反应将导致硼环表现出有趣的发光行为。此外，可以设想将含nhc的硼部分掺入金属配合物中。通过精心选择底物，可以预期催化循环。

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.