Catalytic reduction of CO2 in polarized reaction field made by non-innocent-type non-precious metal complexes

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K13967
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic chemistry
• Research Institution: Chuo University
• Principal Investigator: CHANG HO-CHOL 中央大学, 理工学部, 教授 (60335198)
• Co-Investigator(Kenkyū-buntansha): 松本 剛 中央大学, 理工学部, 助教 (40564109)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 二酸化炭素還元 / フェニレンジアミン / Fe錯体 / 光反応 / カルボキシル化

Outline of Final Research Achievements

In this project, we found that (a) the direct photochemical carboxylation of C-H bonds in aromatic diamines with CO2 by o-phenylenediamine Fe(II) complex in the absence of electron donor and base, (b) the promotion effect of the Fe(II) ion in photochemical carboxylation,
(c) and the mechanistic studies on photochemical hydrogen generation by using 2-methylpropane-2-thiol as a radical trapping reagent. Although the carboxylation reaction presented in this work is a stoichiometric reaction, it is nevertheless the first example of atom- and step-economic direct carboxylation of the C-H bonds in benzene rings and that does not require potentially reactive electron donors or strong bases.

Free Research Field

錯体化学