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  • 09월 06일 15시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 The Cp*-Rh complex catalyzes formation of cyclic carbonate from CO2 and Propylene oxide under mild condition

2013년 9월 5일 16시 06분 07초
INOR.P-251 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 16일 (수요일) 16:00~19:00
저자 및
D.Sivanesan, 윤성호1,*
국민대학교, Korea
1국민대학교 생명나노화학과, Korea

Activation or utilization of carbon dioxide (CO2) is widely studied, owing to their environmental concerns and high abundant and CO2 has the most attractive applications as C1 source in organic synthesis due to their non-toxic and non-corrosive nature. However, the inertness of CO2 makes it very difficult to activate. Several methods have been developed, and among them, one of the very interesting methods is atom-economical synthesis of five membered cyclic carbonates from CO2 and propylene oxides (Scheme 1). Due to the various applications of the cyclic carbonates such as aprotic polar solvents, electrolyte, starting material of poly carbonates and polyurethane, and raw material for the chemical reactions, conversion of CO2 to cyclic carbonatehas gained much attention. Previously, Co(III), Al(III) and Cr(III) complexes with salen ligand derivatives were studied elaborately with different cocatalysts. Similarly, ionic liquids were used to successfully convert the CO2 to cyclic carbonate with propylene oxides. However synthesis ofcyclic carbonate from CO2 and propylene oxide using the metal complexes and the ionic liquids was conducted at high CO2 pressure and temperatures. Additionally some of the catalysts afford the mixture of polycarbonate and cyclic carbonate, and most of the metal catalysts were highly sensitive to water molecule which deactivates the catalyst. Herein, we report the Cp*-Rh(III) complex, where Cp* is pentamethylcyclopentadiene, catalyzed formation of cyclic carbonate from CO2 and propylene oxide, under mild conditions without the influence of moisture.