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    • 8. 发明授权
    • Method for producing alkaline earth metal oxides
    • 碱土金属氧化物的制造方法
    • US07749483B2
    • 2010-07-06
    • US11611707
    • 2006-12-15
    • Thomas ScholtenMichael FookenJessica MauerAndreas Kanschik-ConradsenMichael Hau
    • Thomas ScholtenMichael FookenJessica MauerAndreas Kanschik-ConradsenMichael Hau
    • C01F11/00
    • C01F11/02C01F11/06C01F11/185C01F11/187C01P2004/61C01P2006/80C01P2006/82
    • Disclosed is a processes for the production of relatively high purity alkaline earth metal oxides, such as SrO, from relatively low purity forms of carbonated or other oxygenated forms of such metals, such as strontium carbonate. The relatively low purity material is exposed to conditions under which at least a portion of the metal contained therein is converted to a salt that is more readily solvated in a provided solvent than the starting material, while at the same time not substantially increasing the solubility of at least one or more of the impurities in such selected solvent. This step is then preferably followed by removal of solid or otherwise un-dissolved impurities from the solution. After the removal step, the solution is preferably exposed to conditions effective to form a relatively insoluble salt of the alkaline earth metal, such as a strontium salt. The insoluble salt is also preferably one that can be readily and effectively converted to the desired alkaline earth metal oxide, preferably SrO. A novel preferred thermal decomposition step disclosed.
    • 公开了一种生产相对较高纯度的碱土金属氧化物(如SrO)的方法,其来自相对低纯度形式的碳酸或其它氧化形式的这种金属如碳酸锶。 将相对低纯度的材料暴露于其中含有的金属的至少一部分转化为在所提供的溶剂中比原料更容易溶剂化的盐的条件下,同时基本上不提高溶解度 在这种选择的溶剂中的至少一种或多种杂质。 然后优选该步骤从溶液中除去固体或其它未溶解的杂质。 在除去步骤之后,溶液优选暴露于有效形成碱土金属的相对不溶性盐如锶盐的条件下。 不溶性盐也优选可以容易且有效地转化为所需的碱土金属氧化物,优选SrO的那些。 公开了一种新颖的热分解步骤。
    • 10. 发明授权
    • Methods of producing phosphitylated compounds
    • 磷酸化化合物的制备方法
    • US07217814B2
    • 2007-05-15
    • US10990138
    • 2004-11-16
    • Christian WernerFrank NerenzAndreas Kanschik-ConradsenKalakota S. Reddy
    • Christian WernerFrank NerenzAndreas Kanschik-ConradsenKalakota S. Reddy
    • C07H21/00
    • C07H19/10C07H19/20
    • Provided are methods of producing phosphitylated compounds, including 3′-O-phosphoramidites, comprising the step of reacting a hydroxyl-containing compound with a phosphitylating agent in the presence of a phosphitylation activator selected from the group consisting of: (1) acid-base complexes derived from an amine base of Formula II wherein R3, R4, R5, R6, and R7 are independently hydrogen, C1–C10 alkyl, C3–C10 cycloalkyl, C6–C10 aryl, C7–C10 aralkyl, C1–C10 heteroalkyl, or C1–C10 heteroaryl, and at least one of R3, R4, R5, R6, and R7 is not hydrogen; (2) zwitterionic amine complexes; and (3) combinations of two or more thereof, to produce a phosphitylated compound. Further provided are methods for purifying phosphitylated compounds comprising the steps of providing a phosphitylated compound in a solution solvent, contacting said phosphitylated compound with a precipitation solvent, and precipitating said phosphitylated compound.
    • 提供了生产磷酸化化合物(包括3'-O-亚磷酰胺)的方法,包括在含磷酸化活化剂存在下使含羟基的化合物与磷酸化剂反应的步骤,所述磷化活化剂选自:(1)酸碱 衍生自式II的胺碱的络合物,其中R 3,R 4,R 5,R 6, R 7独立地是氢,C 1 -C 10烷基,C 3 -C 10烷基,C 1 -C 10烷基,C 3 -C 10烷基, 环烷基,C 6 -C 10芳基,C 7 -C 10芳烷基,C 1 -C 10烷基, 或者C 1 -C 10杂芳基,以及至少一个R 1,R 2,R 2, R 4,R 4,R 5,R 6和R 7不是氢; (2)两性离子胺络合物; 和(3)两种或更多种的组合,以产生磷酸化化合物。 还提供了纯化磷酸化化合物的方法,包括以下步骤:在溶液中提供磷酸化化合物,使所述磷酸化化合物与沉淀溶剂接触,并使所述磷酸化化合物沉淀。