Development of Bench-Stable Pentafluorosulfanylating Reagents from Sulfur Hexafluoride

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K20534
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0501:Physical chemistry, functional solid state chemistry, organic chemistry, polymers, organic materials, biomolecular chemistry, and related fields
• Research Institution: Okayama University
• Principal Investigator: Kashihara Myuto 岡山大学, 異分野基礎科学研究所, 特任助教 (10963340)
• Project Period (FY): 2022-08-31 – 2024-03-31
• Keywords: 六フッ化硫黄 / 温室効果ガス / 9-フルオレノール / 一電子移動 / 有機触媒

Outline of Final Research Achievements

In this research, we have tried to obtain a new useful reagent from SF6, the strongest greenhouse gas in the world. Instead of affording the expected reagent, SF6 was found to be efficiently decomposed by using a reductant developed in our group. This method only requires that cheap and non-toxic reductant as a catalyst and relatively low temperature compared to known reactions to degrade SF6. The result would lead to practical technology for the decomposition of greenhouse gas.

Free Research Field

有機化学

Academic Significance and Societal Importance of the Research Achievements

六フッ化硫黄は高い地球温暖化係数を有している一方で，高い絶縁性と安定性，また毒性の低さから，現在でも様々な利用がなされているガスであり，その効率的分解手法が求められてきた。本研究成果は，高難度分子変換と言える六フッ化硫黄の分解に新たな選択肢を与えるものであるとともに，用いた独自の還元剤であるフルオレノールと呼ばれる化合物の応用可能性を拡充するものである。