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    • 22. 发明申请
    • Hydrogen storage by reversible hydrogenation of pi-conjugated substrates
    • 通过π-共轭底物的可逆氢化来储存氢
    • US20050002857A1
    • 2005-01-06
    • US10833484
    • 2004-04-27
    • Guido PezAaron ScottAlan CooperHansong Cheng
    • Guido PezAaron ScottAlan CooperHansong Cheng
    • C01B3/00C01B3/02B65B3/00C10G35/06F17B1/00
    • C01B3/0015Y02E60/328
    • Processes are provided for the storage and release of hydrogen by means of a substantially reversible catalytic hydrogenation of extended pi-conjugated substrates which include large polycyclic aromatic hydrocarbons, polycyclic aromatic hydrocarbons with nitrogen heteroatoms, polycyclic aromatic hydrocarbons with oxygen heteroatoms, polycyclic aromatic hydrocarbons with alkyl, alkoxy, nitrile, ketone, ether or polyether substituents, pi-conjugated molecules comprising 5 membered rings, pi-conjugated molecules comprising six and five membered rings with nitrogen or oxygen hetero atoms, and extended pi-conjugated organic polymers. The hydrogen, contained in the at least partially hydrogenated form of the extended pi-conjugated system, can be facilely released for use by a catalytic dehydrogenation of the latter in the presence of a dehydrogenation catalyst which can be effected by lowering the hydrogen gas pressure, generally to pressures greater than 0.1 bar or raising the temperature to less than 250° C. or less, or by a combination of these two process parameters.
    • 提供了通过扩展的π-共轭底物的基本可逆的催化氢化来提供氢的方法,其包括大的多环芳烃,具有氮杂原子的多环芳烃,具有氧杂原子的多环芳烃,具有烷基的多环芳烃 烷氧基,腈,酮,醚或聚醚取代基,包含5元环的π-共轭分子,包含具有氮或氧杂原子的六元和五元环的π-共轭分子和延伸的π-共轭有机聚合物。 包含在延伸的π-共轭体系的至少部分氢化形式中的氢可以通过在脱氢催化剂的存在下通过催化脱氢来容易地释放使用,所述脱氢催化剂可以通过降低氢气压力来实现, 通常压力大于0.1巴或将温度升高到小于250℃或更低,或通过这两个工艺参数的组合。
    • 24. 发明授权
    • Aminoglycoside antibiotic compounds
    • 氨基糖苷类抗生素化合物
    • US4230847A
    • 1980-10-28
    • US906895
    • 1978-05-18
    • Tattanahalli L. NagabhushanWilliam N. TurnerAlan Cooper
    • Tattanahalli L. NagabhushanWilliam N. TurnerAlan Cooper
    • C07H15/222C07H23/00C07H15/22
    • C07H15/236C07H15/222C07H15/234C07H23/00
    • Selective blocking of some amino groups in a polyamino organic compound having at least one pair of available neighboring hydroxyl and amino groups is effected by first preparing in situ transition metal salt complexes of available neighboring amino and hydroxyl group pairs in said polyamino organic compound, followed by introduction of blocking groups on the non-complexed amino groups and, finally, removing the transition metal cations from the selectively N-blocked polyamino organic compound complex to obtain a polyamino organic compound having selectively blocked amino groups.This process is particularly valuable when carrying out aminocyclitol-aminoglycoside transformations utilizing transition metal salt complexes of cupric acetate, nickel (II) acetate, cobalt (II) acetate or mixtures thereof.
    • 通过首先制备所述聚氨基有机化合物中可得到的相邻氨基和羟基对的原位过渡金属盐络合物,然后将所述聚氨基有机化合物中的至少一对可用相邻羟基和氨基的多氨基有机化合物中的一些氨基选择性阻断, 在非络合氨基上引入封闭基团,最后从选择性N-嵌段聚氨基有机化合物络合物中除去过渡金属阳离子,得到具有选择性封闭的氨基的聚氨基有机化合物。 当使用醋酸铜,乙酸镍(II),乙酸钴(II)或其混合物的过渡金属盐络合物进行氨基环糊精 - 氨基糖苷转化时,该方法特别有价值。