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    • 5. 发明授权
    • Hydroxy-protecting reagent and method of protecting hydroxy with the same
    • 羟基保护试剂和保护羟基的方法
    • US07605286B2
    • 2009-10-20
    • US10567150
    • 2004-06-23
    • Tetsuya IkemotoYosuke Watanabe
    • Tetsuya IkemotoYosuke Watanabe
    • C07C69/66C07C43/20
    • C07B41/04C07D307/32Y02P20/55
    • The present invention relates to a method of protecting a hydroxyl group, which includes reacting a hydroxyl group-containing compound with a compound represented by the formula (I): wherein R is a phenyl group optionally having substituent(s), an alkyl group optionally having substituent(s) or a benzyl group optionally having substituent(s), and X is a halogen atom, in the presence of an acid catalyst to substitute the hydrogen atom of the hydroxyl group of the hydroxyl group-containing compound with a protecting group represented by the formula (II): wherein R is as defined above. The present invention provides a method capable of introducing an acetal type protecting group into a hydroxyl group under mild conditions, and a protecting reagent therefor and a method of producing the protecting reagent.
    • 本发明涉及保护羟基的方法,其包括使含羟基的化合物与式(I)表示的化合物反应:其中R是任选具有取代基的苯基,任选地具有取代基的烷基 具有取代基或任选具有取代基的苄基,X是卤素原子,在酸催化剂存在下,用保护基取代含羟基化合物的羟基的氢原子 由式(II)表示:其中R如上所定义。 本发明提供能够在温和条件下将缩醛型保护基引入羟基的方法及其保护试剂,以及制备保护试剂的方法。
    • 9. 发明授权
    • Electrical apparatus with higher durability against surges
    • 具有较高耐久性的电气设备
    • US08786992B2
    • 2014-07-22
    • US12727559
    • 2010-03-19
    • Yoko SumiyoshiJunichi FujiwaraYosuke Watanabe
    • Yoko SumiyoshiJunichi FujiwaraYosuke Watanabe
    • H01T4/08H01T4/06H01T4/10H01T4/16H01H9/06
    • H02H9/06H01T4/08
    • An electrical apparatus, which is immovable in a facility, comprises plural electric circuits. Each electric circuit has one or more resistance elements and is connected to each input terminal connected a power source. The electric circuits are arranged positionally closely with each other. In each electric circuit, a desired functional circuit is connected in series to the resistance element, and a protection circuit is connected in series to the resistance element and connected in parallel with the functional circuit. A discharge member is provided in each electric circuit and arranged between each input terminal and the functional circuit. The discharge member includes a discharge gap which allows the discharge member to face with the discharge member of an adjacently arranged electric circuit.The discharge gap discharge deliberately to the adjacently positioned discharge member when a voltage applied to a selected electric circuit exceeds a predetermined voltage value.
    • 在设施中不可移动的电气设备包括多个电路。 每个电路具有一个或多个电阻元件,并且连接到连接到电源的每个输入端子。 电路彼此位置紧密地排列。 在每个电路中,期望的功能电路与电阻元件串联连接,并且保护电路与电阻元件串联连接并与功能电路并联。 在每个电路中设置放电构件,并且布置在每个输入端子和功能电路之间。 放电构件包括放电间隙,其允许放电构件面对相邻布置的电路的放电构件。 当施加到所选择的电路上的电压超过预定电压值时,放电间隙放电到相邻定位的放电构件。