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    • 56. 发明专利
    • Production method for cis-1-amino-4-hydroxymethyl-2-cyclopentene or its salt
    • CIS-1-氨基-4-羟基甲基-2-环戊烯或其盐的生产方法
    • JP2005298405A
    • 2005-10-27
    • JP2004117236
    • 2004-04-12
    • Kuraray Co Ltd株式会社クラレ
    • FUKUMOTO TAKASHISATO JUNKOARAYA KAZUHIRO
    • C07C213/00C07C213/02C07C215/42C07C251/04
    • PROBLEM TO BE SOLVED: To provide a method capable of producing cis-1-amino-4-hydroxymethyl-2-cyclopentene or its salt with high selectivity and a high yield by using inexpensive reactants easily handleable. SOLUTION: Cis-1-amino-4-hydroxymethyl-2-cyclopentene represented by formula (II) or its salt is produced by mixing a cis-4-amino-2-cyclopentene-1-carboxylic ester salt represented by general formula (I) (wherein R 1 is an optionally substituted alkyl, cycloalkyl, alkenyl, alkynyl, aryl, or aralkyl group; and A is an inorganic or organic acid residue) with a metal boron hydride complex compound under the condition that the stoichiometric ratio of the amount of the metal boron hydride complex compound to the amount of the cis-4-amino-2-cyclopentene-1-carboxylic ester salt is 1-10. COPYRIGHT: (C)2006,JPO&NCIPI
    • 待解决的问题:通过使用便宜的易于处理的反应物,提供能够以高选择性和高产率生产顺式-1-氨基-4-羟甲基-2-环戊烯或其盐的方法。 解决方案:由式(II)表示的顺式-1-氨基-4-羟甲基-2-环戊烯或其盐通过将通式(II)表示的顺式-4-氨基-2-环戊烯-1-羧酸酯盐 式(I)(其中R“SP”是任选取代的烷基,环烷基,烯基,炔基,芳基或芳烷基; A是无机或有机酸残基)与金属硼氢化物络合物 在金属硼氢化物配位化合物的量与顺式-4-氨基-2-环戊烯-1-羧酸酯盐的量的化学计量比为1-10的条件下进行。 版权所有(C)2006,JPO&NCIPI
    • 57. 发明专利
    • Electrophotographic photoreceptor and image forming apparatus
    • 电子照相机和图像形成装置
    • JP2004341005A
    • 2004-12-02
    • JP2003134065
    • 2003-05-13
    • Kyocera Mita Corp京セラミタ株式会社
    • SUGAI AKIO
    • G03G5/06C07C251/04C07C251/08C07C251/24
    • PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which is more excellent in gas resistance as compared with the conventional one and in which degradation of electrical properties does not occur even after long-time use, and to provide an image forming apparatus capable of obtaining a good image having high image density and having no image fogging.
      SOLUTION: The electrophotographic photoreceptor used in the image forming apparatus is obtained by disposing a photosensitive layer on a supporting substrate, wherein the photosensitive layer contains a ketone derivative represented by formula (1) wherein R
      1 represents alkyl, aryl or alkoxycarbonyl; and R
      2 represents alkyl.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种比以往更耐气体性优异的电子照相感光体,即使长时间使用也不会发生电性能的劣化,并且提供图像形成装置 能够获得具有高图像密度且没有图像雾化的良好图像。 解决方案:图像形成装置中使用的电子照相感光体是通过在支撑基板上设置感光层而获得的,其中感光层含有由式(1)表示的酮衍生物,其中R 1 代表烷基,芳基或烷氧基羰基; 并且R 2 表示烷基。 版权所有(C)2005,JPO&NCIPI