Development of Halogenation Reaction with Salt by Photocatalyst

2019 Fiscal Year Final Research Report

• Project/Area Number: 18K14215
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 33020:Synthetic organic chemistry-related
• Research Institution: Kyoto University
• Principal Investigator: Iwamoto Takahiro 京都大学, 化学研究所, 特定助教 (50735355)
• Project Period (FY): 2018-04-01 – 2020-03-31
• Keywords: 光触媒 / 相間移動触媒 / ハロゲン化

Outline of Final Research Achievements

Organic halides represent important classes of chemicals in organic chemistry. Although halogenation reactions have been established firmly in chemical industry, these processes require huge amount of energy. As an ideal halogenation reaction, we here examined halogenation reactions by using halide salts. As a result, we have developed a novel photocatalyst having phase-transfer ability, and succeeded its application to catalytic bromination with potassium bromide. The present results indicated that such phase-transfer photocatalysts would have great potential as a catalyst of halogenation reactions with halide salts.

Free Research Field

有機化学

Academic Significance and Societal Importance of the Research Achievements

有機ハロゲン化物は今日の化学産業において必要不可欠であるが，その合成法はエネンルギー多消費プロセスであり改善の余地を残す。本研究で提唱するようにハロゲン化物塩を用いて有機化合物の直接ハロゲン化を行うことができれば，ハロゲン化合物生産に必要なエネルギーを削減し，持続可能な社会に資する次世代有機合成化学の確立に貢献に繋がると考えている。