有機分子の触媒的脱水素化を基軸とする効率的有機合成 ならびに水素貯蔵•水素製造

摘要

One of the greatest challenges in modern chemistry is to perform efficient transformations of organic molecules under environmentally friendly conditions with the aid of catalyst. In the past few decades, high performance catalysts have been designed for a variety of organic transformations. By using an appropriate catalyst, a number of reactions that would not usually proceed have been accomplished and ingenious reaction selectivities have been attained. These developments stimulated remarkable progress in the field of catalytic organic chemistry. Under these situations, we focused attention on metal-catalyzed dehydrogenative transformations of organic molecules based on the cooperative catalysis by iridium and a functional ligand.In this paper, our recent investigations on (1)dehydrogenative oxidation of alcohols into carbonyl compounds, (2) hydrogen storage systems based on the reversible interconversion between saturated N-heterocycles and unsaturated aromatic N-heterocycles by catalytic dehydrogenation and hydrogenation, and (3) efficient hydrogen production from methanol-water solution under very mild conditions, have been summarized.%以上のように我々は、ィリジゥムと機能性配位子の協働作用に基づtゝた錯体触媒設計を行い、各種の新規イリジウム錯体触媒を合成するとともに、さまざまな脱水素化触媒系を開発してきた。これら一連の研究成果は、有機合成化学における新しtゝ手法を提供するものとして重要であるだけでなく、水素貯蔵法や水素製造法としての研究展開にも成功しているように、環境•エネルギー分野においても貢献するものと考えている。今後も、この分野の発展に役立つ研究を進めていきたい。