Development of Innovative Synthetic Reactions Using Group 7 Metals as Catalysts, Reagents, or Probes

Re在有机合成中不是一种常见的元素。通过这项研究，我们试图阐明金属的性质，特别是未知的和有用的有机合成反应活性。以稀土配合物为探针，我们发现了以下合成反应。(1)Lewis酸催化的稀土络合物反应。(2)基于稀土配合物与C(Sp2)-H键活化的反应。(3)基于&#61537；-碳与Re配合物之间的C-C键断裂的反应。(4)通过在邻近位置激活杂原子-氢键和C-H键而形成杂原子-碳键。(5)Re以外的过渡金属催化的新型C-C键断裂反应。

Rhenium is not a popular element in organic synthesis. Through this research, we tried to clarify the features of the metal, especially unknown and useful reactivities for organic synthesis. We have found the following synthetic reactions by using rhenium complexes as probes. (1) Lewis-acid catalyzed reactions with rhenium complexes. (2) Reactions based on the C(sp2)-H bond activation with rhenium complexes. (3) Reactions based on the C-C bond cleavage between carbonyl and -carbons with rhenium complexes. (4) Formation of heteroatom-carbon bonds by activation of heteroatom-hydrogen and C-H bonds at proximity positions. (5) Novel C-C bond cleavage reactions catalyzed by other transition metals than rhenium.