摘要 镍(II)钳形络合物[(Me N 2 N)Ni-Cl]用于催化未活化烷基卤化物的烷基-烷基和烷基-芳基的Suzuki-Miyaura偶联反应。9-烷基-9-硼环[3.3.1]壬烷和9-苯基-9-环环[3.3.1]壬烷试剂与卤代烷的偶联以中等至良好的收率实现。该反应可耐受各种有用的官能团,包括酯,醚,呋喃,硫醚,乙缩醛和Boc基团。 镍(II)钳形络合物[(Me N 2 N)Ni-Cl]用于催化未活化烷基卤化物的烷基-烷基和烷基-芳基的Suzuki-Miyaura偶联反应。9-烷基-9-硼环[3.3.1]壬烷和9-苯基-9-环环[3.3.1]壬烷试剂与卤代烷的偶联以中等至良好的收率实现。该反应可耐受各种有用的官能团,包括酯,醚,呋喃,硫醚,乙缩醛和Boc基团。
NiH-Catalyzed Reductive Relay Hydroalkylation: A Strategy for the Remote C(sp<sup>3</sup>
)−H Alkylation of Alkenes
作者:Fang Zhou、Jin Zhu、Yao Zhang、Shaolin Zhu
DOI:10.1002/anie.201712731
日期:2018.4.3
The terminal‐selective, remoteC(sp3)−H alkylation of alkenes was achieved by a relay process combining NiH‐catalyzed hydrometalation, chain walking, and alkylation. This method enables the construction of unfunctionalized C(sp3)−C(sp3) bonds under mild conditions from two simple feedstock chemicals, namely olefins and alkyl halides. The practical value of this transformation is further demonstrated
From Dimethylamine to Pyrrolidine: The Development of an Improved Nickel Pincer Complex for Cross-Coupling of Nonactivated Secondary Alkyl Halides
作者:Pablo M. Perez Garcia、Thomas Di Franco、Alexandre Epenoy、Rosario Scopelliti、Xile Hu
DOI:10.1021/acscatal.5b02324
日期:2016.1.4
Replacement of a dimethyl amino group of the amidobis(amine) nickel(II) pincer complex (1), [((N2N)-N-Me)-Ni-Cl], by a pyrrolidino group resulted in a new nickel(II) pincer complex (2), [((PNNN)-N-yr-N-Me)Ni-Cl]. Complex 2 is an efficient catalyst for Kumada and Suzuki-Miyaura cross-coupling of nonactivated secondary alkyl halides, while complex 1 is largely inactive. The significant activity difference is tentatively attributed to a minimal structural difference, which leads to a more hemilabile ligand.