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    • 2. 发明公开
    • 셀룰로오즈 포스파이트 화합물의 제조방법
    • 纤维素磷酸盐化合物的制备方法
    • KR1020110091228A
    • 2011-08-11
    • KR1020100010954
    • 2010-02-05
    • 한국과학기술연구원
    • 이현주이방숙서영웅민병권안병성김훈식
    • C08B15/05
    • C08B5/00C08B1/003
    • PURPOSE: A method for preparing a cellulose phosphite compound is provided to suppress side reaction such as the degradation of a cellulose polymer chain or intermolecular cross-linking bond and to prepare a cellulose phosphite compound with excellent solubility in water. CONSTITUTION: A method for preparing a cellulose phosphite compound comprises the step of performing the phosphorylation of cellulose in the ionic liquid consisting of amine-based cations and phosphite-based anions. The amine-based cation is selected from the cations represented by chemical formula 1. In chemical formula 1, R1, R2, R3, R4, R5, R6, R7, and R8 are the same or different and represent a C1-6 alkyl group, C1-6 alkylcarboxylic acid group, C1-6 alkylester group, hydroxyl C1-6 alkyl group, dihydroxy C1-6 alkyl group, C1-6 alkoxy C1-6 alkyl group or phenyl group.
    • 目的:提供一种制备亚磷酸纤维素化合物的方法,以抑制纤维素聚合物链或分子间交联键的降解等副反应,制备在水中溶解性优异的亚磷酸纤维素化合物。 构成:制备亚磷酸纤维素化合物的方法包括在由胺基阳离子和亚磷酸盐基阴离子组成的离子液体中进行纤维素的磷酸化的步骤。 胺系阳离子选自由化学式1表示的阳离子。在化学式1中,R 1,R 2,R 3,R 4,R 5,R 6,R 7和R 8相同或不同,表示C 1-6烷基 C 1-6烷基羧酸基,C 1-6烷基酯基,羟基C 1-6烷基,二羟基C 1-6烷基,C 1-6烷氧基C 1-6烷基或苯基。
    • 4. 发明公开
    • 신규한 이온성 액체 및 그의 제조방법
    • 新型离子液体及其制备方法
    • KR1020050028774A
    • 2005-03-23
    • KR1020030065302
    • 2003-09-19
    • 한국과학기술연구원
    • 이상기이재균이방숙
    • C07D233/60
    • Ionic liquid and a preparation method thereof are provided, which ionic liquid has the imidazole salt structure containing sulfur atom which enables to easily form a self-assembled monolayer on the surface of gold, and makes it easy to modify properties of the metal surface by exchange of ion. The ionic liquid having the imidazole salt structure containing sulfur atom represented by formula (1) is provided, wherein n is an integer of 1 to 20; R1 is C1-C16 alkyl, aryl or substituted aryl; R2, R3 and R4 are independently hydrogen, C1-C6 alkyl, C3-C8 cyclic alkyl, aryl or substituted aryl in which the substitutent is halogen, C1-C6 alkyl or C1-C6 alkoxy; and X is Cl, Br, I, BF4, PF6, SbF6, NO3, ClO4, OTf or N(Tf)2. The method for preparing the ionic comprises the steps of: (1) reacting imidazol wherein R1, R2, R3 and R4 are substituted at sites 1, 2, 4, 5 with Y-(CH2)n-Z to prepare a compound (II) in which Y and Z are independently Cl, Br or I; (2) reacting the compound (II) with MSC(O)R5 to prepare a compound (III) wherein R5 is C1-C10 alkyl or aryl, and M is an alkali metal; (3) hydrolyzing the compound (III) to prepare a compound (IV); and (4) reacting the compound (IV) with MX.
    • 提供离子液体及其制备方法,该离子液体具有含有硫原子的咪唑盐结构,能够在金表面上容易地形成自组装单层,并且通过交换容易地改性金属表面的性质 的离子。 提供了具有由式(1)表示的含硫原子的咪唑盐结构的离子液体,其中n为1至20的整数; R1是C1-C16烷基,芳基或取代的芳基; R2,R3和R4独立地是氢,C1-C6烷基,C3-C8环烷基,其中取代基是卤素,C1-C6烷基或C1-C6烷氧基的芳基或取代芳基; X是Cl,Br,I,BF 4,PF 6,SbF 6,NO 3,ClO 4,OTf或N(Tf)2。 制备离子的方法包括以下步骤:(1)咪唑,其中R 1,R 2,R 3和R 4在位置1,2,4和5与Y-(CH 2)n Z取代,以制备化合物 Y和Z独立为Cl,Br或I; (2)使化合物(II)与MSC(O)R5反应,制备其中R 5为C 1 -C 10烷基或芳基,M为碱金属的化合物(III) (3)水解化合物(III)以制备化合物(IV); 和(4)使化合物(IV)与MX反应。