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제126회 대한화학회 학술발표회 및 총회 Terpyridine-Pr-Fe3O4@boehmite nanoparticles; a novel and highly effective magnetic nanocatalyst for preparation of cyclic carbonates from carbon dioxide and epoxides under solventless conditions

등록일
2020년 9월 18일 13시 56분 53초
접수번호
1177
발표코드
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발표시간
10월 21일(수) 17:30~18:00
발표형식
포스터
발표분야
Organic Chemistry
저자 및
공동저자
Faisal Muhammad, Aamer Saeed*
Organic chemistry, Quaid-i-Azam University, Pakistan
※ 국외소속으로 등록된 저자의 승인여부는 최소 3일이내 발표자 email로 알려드립니다.
승인 1건

In this research work, moisture- and air-stable terpyridine-mediated magnetic boehmite (terpyridine-Pr-Fe3O4@boehmite)nanocatalyst was fabricated and applied for the synthesis of cyclic carbonates. The nanocatalyst was constructed by very simple process using commercially available starting materials and fully characterized through various techniques including FT-IR, VSM, SEM, TGA, N2 adsorption-desorption isotherm, elemental analysis and leaching test. The characterizations results suggested the superparamagnetic nature of the Fe3O4 nucleus encapsulated by a boehmite nanoparticles shell. Further, nanoparticles could be used safety in organic reactions owing to large thermal stability of around 300 °C and can be applicable under strong acidic and basic reaction conditions. Additionally, the nanoparticles were of hexagonal like shape, uniformly distributed and much uniform in size, with an average size about 50 nm. Terpyridine-Pr-Fe3O4@boehmite nanoparticles were applied as nano-catalyst for the synthesis of cycliccarbonates form the cycloaddition coupling reaction of carbon dioxide with epoxides under solvent-less conditions. The cost-effective nano-catalyst tolerated a broad variety of functional groups. The one-pot and practical procedure offers numerous benefits such as good to excellent yields, environment-friendliness,low catalyst loading and operational simplicity. Additionally, the durability of catalyst was investigated and observed that the catalyst is stable under there action conditions and could be isolated easily from the reaction content by using a bar magnet and reused for several consecutive cycles without any important loss of catalytic potency.


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