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Preparation of 2,5-Bis(Aminomethyl)Furan by Direct Reductive Amination of 2,5-Diformylfuran over Nickel-Raney Catalysts 被引量:4
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作者 Ngoc-Thuc Le Areum Byun +2 位作者 Yohan Han kee-in lee Hyungrok Kim 《Green and Sustainable Chemistry》 2015年第3期115-127,共13页
The direct reductive amination of 2,5-diformylfuran (DFF) with ammonia to 2,5-bis(aminomethyl)furan (BAF) was demonstrated, for the first time, over the commercial type Nickel-Raney and acid treated Nickel-Raney catal... The direct reductive amination of 2,5-diformylfuran (DFF) with ammonia to 2,5-bis(aminomethyl)furan (BAF) was demonstrated, for the first time, over the commercial type Nickel-Raney and acid treated Nickel-Raney catalysts. The effects of reaction parameters such as reaction medium, temperature and hydrogen pressure were described. The acid treated Nickel-Raney catalyst exhibited the highest BAF yield in the THF-water mixed reaction medium. The relatively higher Ni0 species composition and larger surface area of the acid treated Nickel-Raney catalyst with specific reaction conditions contributed greatly to the BAF formation. The oligomeric species, such as furanic imine trimers and tetramers confirmed by MALDI-MS analysis were presented as the intermediates of DFF reductive amination. 展开更多
关键词 Reductive Amination Primary Amine 2 5-Bis(Aminomethyl)Furan 5-Diformylfuran NICKEL RANEY Catalyst
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An Alternative Path for the Preparation of Triacetylcellulose from Unrefined Biomass
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作者 Hee Kyung Lim Ha Young Song +4 位作者 Dal Rye Kim Jeong Ho Ko Sun Ah lee kee-in lee In Taek Hwang 《Advances in Chemical Engineering and Science》 2015年第1期33-42,共10页
An alternative path for the preparation of triacetylcellulose (TAC) from unrefined biomass Palm Empty Fruit Bunch (EFB) has been found with environmental benefits. The method comprises separation and regeneration of c... An alternative path for the preparation of triacetylcellulose (TAC) from unrefined biomass Palm Empty Fruit Bunch (EFB) has been found with environmental benefits. The method comprises separation and regeneration of cellulose from lignocellulosic biomass dissolved in ionic liquid BMIMCl, and also modification of cellulose to TAC. The triacetylcellulose with a degree of substitution of 2.93 was obtained by the reaction of acetic anhydride at 55。C with drastically reducing number of steps currently required to produce this derivative from raw materials itself. TAC was characterized using NMR analysis. The triacetate cellulose is typically used for the creation of fibers and film base. 展开更多
关键词 Ionic Liquid PALM EMPTY Fruit BUNCH (EFB) Triacetylcellulose (TAC)
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