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    • 10. 发明申请
    • PREPARATION OF ALKOXYAMINES
    • 烷基胺的制备
    • WO2007059350A2
    • 2007-05-24
    • PCT/US2006044931
    • 2006-11-17
    • UNIV CARNEGIE MELLONMATYJASZEWSKI KRZYSZTOFSPANSWICK JAMES
    • MATYJASZEWSKI KRZYSZTOFSPANSWICK JAMES
    • C07C239/20
    • Embodiments of the process for the preparation of alkoxyamines of the present invention are directed to conducting a coupling reaction in a reaction medium initially comprising at least one transition metal catalyst, an ATRP initiator and a nitroxide or nitroxide precursor. The reaction medium may additionally comprise a reducing agent. In certain embodiments the reducing agent is the nitroxide precursor. The reducing agent may be added initially or during the coupling process in a continuous or intermittent manner. The coupling process may further comprises reacting the reducing agent with at least one of the transition metal catalyst in an oxidized state further comprising a radically transferable atom or group to form a compound that does not participate significantly in control of the coupling process. Embodiments of the present invention comprise reacting a reducing agent with at least one of catalyst in an oxidized state and an ATRP initiator to initiate and/or maintain catalytic activity throughout the coupling process between the formed radical and added nitroxide.
    • 制备本发明的烷氧基胺的方法的实施方案涉及在最初包含至少一种过渡金属催化剂,ATRP引发剂和氮氧化物或氮氧化物前体的反应介质中进行偶联反应。 反应介质可另外包含还原剂。 在某些实施方案中,还原剂是氮氧化物前体。 还原剂可以以连续或间歇的方式最初或在偶联过程中加入。 偶联方法还可以包括使还原剂与至少一种过渡金属催化剂以氧化态反应,还包含可自由基转移的原子或基团,以形成不显着控制偶合过程的化合物。 本发明的实施方案包括使还原剂与氧化状态的催化剂和ATRP引发剂中的至少一种反应,以在形成的自由基和加入的氮氧化物之间的整个偶联过程中引发和/或维持催化活性。