有机谐二硼、谐二硅以及谐二锡化合物具有独特的反应性，其相关的研究近年来得到了广泛的关注。但是其研究仍然处于起步阶段，特别是有机谐二硅以及有机谐二锡化合物的相关研究还较少。因此非常有必要系统深入地开展这类化合物的合成以及反应性研究，进而发展高效的有机合成新方法。另一方面，金属卡宾方面的研究一直是有机合成方法学和金属有机化学的前沿领域，特别是金属卡宾参与的过渡金属催化的交叉偶联是近年发展起来的重要方向。过去几年的研究已经表明经由金属卡宾迁移插入的交叉偶联反应具有普遍性，这类反应已经逐步成为构建碳碳键的新方法。本项目将金属卡宾的反应应用到有机谐二（准）金属化合物的合成以及新反应探索中，发展新颖高效的有机合成新反应。

Geminal bis(boron), bis(silicon) and bis(tin) compounds possess unique reactivities, therefore, studies on these compounds have attracted widespread attentions in recent years. However, studies on these compounds are still in the rudimentary stage, in particular, the studies on geminal bis(silicon) and bis(tin) compounds. Therefore, it is very necessary to lunch a profound and systematic research on the synthesis and reactivities of this type of compounds, so that novel and highly efficient organic synthesis methodologies can be developed. On the other hand, studies on the metal carbene have been on the frontier of organic synthesis methodologies and organometallics. In particular, the transition-metal-catalyzed cross-coupling reaction involving metal carbene species have extensively studied in the past few years. These studies have demonstrated that the cross-coupling reactions involving metal carbene migratory insertion are general and they have evolved into new method for carbon carbon bond formations. In this project, we will apply the metal carbene reaction into the synthesis and new reaction developments of geminal bis(boron), bis(silicon) and bis(tin) compounds. We expect novel and highly efficient synthetic methodologies will be emerged from this project.