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  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis, CO2-solubilities and supercritical CO2 metal extraction of catechol-containing amines as a novel CO2-soluble chelating agent

등록일
2014년 8월 28일 15시 24분 17초
접수번호
1085
발표코드
ORGN.P-847 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
yan xinhao, 김학원1,*
경희대학교 화학과, China
1경희대학교 응용화학과, Korea

In present study, four new CO2-philic catecholic amines containing non fluoroalkyl and carbamate group (Boc) on the nitrogen, as chelating agents, had been designed and synthesized from 3, 4-dihydroxybenzaldehyde by simple chemical modifications. Their solubilities and metal ion extraction ability in supercritical carbon dioxide (scCO2) have been tested. The solubilities of newly synthesized compounds in scCO2 were investigated by using a static analytical method at temperature from 313 K to 333 K and pressure range of 70-140 bar[1]. All synthesized catecholic amine derivatives (4a, 4b, 4c, 4d) showed much higher solubilities in scCO2 than the corresponding 3, 4-dihydroxybenzaldehyde at easily accessible temperatures and pressures. We found tertiary carbamates (4a, 4b, 4c, 4d) would be CO2-philic moiety, but secondary carbamate (4e) is not CO2-philic group. All synthesized catechol derivatives (4a, 4b, 4c, 4d) showed good or moderate extraction efficiencies for several metal ions(Cu2+, Sr2+, Mn2+, Cd2+, and Cs+)[2].


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