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    • 9. 发明申请
    • ORGANOZINC COMPLEXES AND PROCESSES FOR MAKING AND USING THE SAME
    • ORGANOZINC复合物及其制备和使用方法
    • WO2012085168A1
    • 2012-06-28
    • PCT/EP2011/073714
    • 2011-12-21
    • LUDWIG-MAXIMILIANS-UNIVERSITÄT MÜNCHENKNOCHEL, PaulBERNHARDT, SebastianMANOLIKAKES, Georg
    • KNOCHEL, PaulBERNHARDT, SebastianMANOLIKAKES, Georg
    • C07F3/06
    • C07F3/06C07B37/04C07C67/343C07C231/12C07C253/30C07D213/84C07D213/85C07D215/12C07D239/52C07F7/083C07F7/1892
    • Processes for making an organozinc reagents are disclosed comprising reacting (A) organomagnesium or organozinc complexes with (B) at least one coordination compound comprising one or more carboxylate groups and/or alcoholate groups and/or tertiary amine groups, optionally in combination with zinc ions and/or lithium ions and/or halide ions, wherein the halide ions are selected from chloride, bromide and iodide, the organozinc complex comprises an aryl group, a heteroaryl group or a benzyl group when the coordinating compound is a chelating polyamine, and the reaction is conducted in the presence of zinc complexed with at least one coordinating compound when reactant (A) comprises at least one organomagnesium complex. The resulting organozinc reagents may optionally be isolated from solvents to obtain a solid reagent. The reagents may be used for making organic compounds via Negishi cross-coupling reactions or via aldehyde and/or ketone oxidative addition reactions. The organozinc reagents are stable and, due to their high selectivity, permit maintenance of sensitive functional groups such as aldehydes during cross-coupling.
    • 公开了制备有机锌试剂的方法,其包括使(A)有机镁或有机锌络合物与(B)至少一种包含一个或多个羧酸酯基团和/或醇化物基团和/或叔胺基团的配位化合物,任选与锌离子 和/或锂离子和/或卤离子,其中卤离子选自氯化物,溴化物和碘化物,当配位化合物是螯合多胺时,有机锌络合物包括芳基,杂芳基或苄基, 当反应物(A)包含至少一个有机镁络合物时,在与至少一种配位化合物络合的锌存在下进行反应。 所得到的有机锌试剂可以任选地从溶剂中分离以获得固体试剂。 试剂可用于通过Negishi交叉偶联反应或通过醛和/或酮氧化加成反应制备有机化合物。 有机锌试剂是稳定的,并且由于其高选择性,允许在交联期间维持敏感官能团如醛。