Precise control of radical reaction utilizing the synergistic effects of heavier heteroatom compounds

通过对有机杂原子化合物的反应性的深入了解，人们开发了新的方法来加强对自由基反应和自由基聚合反应的控制。我们主要进行了1)作为碳中心自由基前驱体的杂原子物种的反应性差异的阐明，以及2)利用具有杂原子-杂原子sigma键的双原子化合物来控制反应。除了这些结果外，我们还开发了一种由光引发的高度可控、高效的活性自由基聚合的新条件，以及通过活性聚合物末端的选择性转化来合成结构高度明确的聚合物的新途径。

New methods to increase the control of radical reactions and radical polymerization reactions have been developed through deep understanding of the reactivities of organoheteroatom compounds. We have mainly carried out 1) the elucidation of the reactivity difference of heteroatom species used as precursors of carbon centered radicals, and 2) the use of diheteroatom compounds, which possess heteroatom-heteroatom sigma bond, for the control of the reactions. Besides these results, we also developed a new condition for the highly controlled and efficient living radical polymerization, which is triggered by photo-irradiation, and the new synthetic route to structurally highly defined polymers through the selective transformation of living polymer ends.