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    • 3. 发明授权
    • Catalyst for asymmetric induction
    • 非对称诱导催化剂
    • US5288682A
    • 1994-02-22
    • US851285
    • 1992-03-12
    • Atsunori MoriShohei Inoue
    • Atsunori MoriShohei Inoue
    • B01J31/02C07C253/08C07C255/36B01J31/00
    • C07C253/00B01J31/0212B01J31/0241B01J31/0247B01J2231/343C07B2200/07
    • Optically active cyanohydrins are prepared by addition of hydrogen cyanide to aldehydes in the presence of catalysts which comprise the dipeptide derivative represented by the formula ##STR1## wherein R.sup.1 represents an isopropyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a methyl group, a benzyl group or a phenyl group, R.sup.2 represents a benzyl group, an indol-3-ylmethyl group, an isopropyl group, an isobutyl group or a phenyl group, R.sup.3 represents a lower alkoxy group, a hydroxy group or a mono- or di-lower alkylamino group, R.sup.4 represents a hydrogen atom, or R.sup.2 and R.sup.4 are bonded together at their terminals to form a CH.sub.2 CH.sub.2 CH.sub.2 group, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are the same or different, and each represents a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group or R.sup.5 and R.sup.6, R.sup.6 and R.sup.7, or R.sup.7 and R.sup.8 are bonded together at their terminals to form CH.dbd.CH--CH.dbd.CH or OCH.sub.2 O, and * denotes an absolute configuration of S or R, and a titanium (IV) alkoxide.
    • 通过在催化剂存在下,将氰化氢加入到醛中来制备光活性氰醇,该催化剂包含由式(* CHEMICAL STRUCTURE *)(I)表示的二肽衍生物,其中R 1表示异丙基,异丁基,仲丁基 基团,叔丁基,甲基,苄基或苯基,R 2表示苄基,吲哚-3-基甲基,异丙基,异丁基或苯基,R 3表示低级 烷氧基,羟基或单 - 或二 - 低级烷基氨基,R 4表示氢原子,或者R 2和R 4在其末端键合在一起形成CH 2 CH 2 CH 2基,R 5,R 6,R 7和R 8相同, 各自表示氢原子,卤素原子,低级烷基或低级烷氧基或R5和R6,R6和R7,或R7和R8在其末端键合在一起形成CH = CH-CH = CH 或OCH 2 O,*表示S或R的绝对构型,钛(IV) 醇盐
    • 6. 发明授权
    • Recording and reproducing apparatus
    • 记录和再现设备
    • US08089847B2
    • 2012-01-03
    • US12550366
    • 2009-08-29
    • Shohei InoueSyougo HorinouchiHideaki HorioTaiichi Mori
    • Shohei InoueSyougo HorinouchiHideaki HorioTaiichi Mori
    • G11B7/00
    • G11B7/083G11B7/0065G11B7/1381G11B2007/0013
    • The recording and reproducing apparatus has rotary drive unit (a motor) that rotationally drives a multilayer recordable recording medium 1; a reference-light-side recording and reproducing lens 6 and a recording-light-side recording and reproducing lens 7 that are disposed oppositely to the recording medium 1 which is rotationally driven by the rotary drive unit, an address detection lens 5 that is disposed opposite the recording medium 1 and that is provided separately from the recording and reproducing lenses 6 and 7; a light source 9 for recording and reproducing purpose that supplies recording reproduction light to the recording and reproducing lenses 6 and 7; and the address light source 9 that supplies address light to the address detection lens 5. The apparatus is configured in such a way that light whose center axis portion is optically hollow is supplied from the reference-light-side recording and reproducing lens 6 to the recording medium 1 during reproducing operation.
    • 记录和再现装置具有旋转地驱动多层记录介质1的旋转驱动单元(马达); 与由旋转驱动单元旋转驱动的记录介质1相对设置的基准光侧记录和再现透镜6和记录光侧记录和再现透镜7,设置的地址检测透镜5 与记录介质1相对并且与记录和再现透镜6和7分开设置; 用于将记录再现光提供给记录和再现透镜6和7的用于记录和再现目的的光源9; 以及将地址光源9提供给地址检测透镜5的地址光源9.该装置被配置为使得中心轴部分是光学中空的光从参考光侧记录和再现透镜6提供给 记录媒体1。