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用于还原交叉亲电偶联的甲脒型配体
还原交叉亲电偶联 (CEC)是卤代芳烃与卤代烷烃1)、氧化还原性烷基羧酸2)等之间的C(sp2)-C(sp3)交叉偶联反应。在该反应中,以下甲脒型化合物(PyBCam·HCl, PyBCamCN, PyCam·HCl, PyCamCN, tBuBpyCamCN)为配体的镍络合物被用作催化剂。CEC无需有机锌和有机硼等用于传统偶联反应的有机金属试剂。因此,偶联底物更容易得到和处理。在药物研发中,该配体有望用于在作为母体骨架的芳香环中导入各种烷基3)。
关键词
- P3015
- 吡啶-2,6-二甲脒二盐酸盐 (= PyBCam·HCl)
- D6070
- N2,N6-二氰基吡啶-2,6-双(甲脒) (= PyBCamCN)
- P2176
- 吡啶甲脒盐酸盐 (= PyCam·HCl)
- C3801
- N'-氰基-2-吡啶甲脒 (= PyCamCN)
- C3803
- 4,4'-二叔丁基-N-氰基[2,2’-联吡啶]-6-甲脒 (= tBuBpyCamCN)
- N1051
- 氯化镍(II)乙二醇二甲醚复合物 (= NiCl2(DME))
- N1298
- 溴化镍(II)乙二醇二甲醚复合物 (= NiBr2(DME))
- H0395
- N-羟基邻苯二甲酰亚胺 (= NHPI)
- S0564
- 碘化钠 (= NaI)
- T0431
- 三氟乙酸 (= TFA)
- D0254
- N,N'-二异丙基碳二亚胺 (= DIC)
- D1450
- 4-二甲氨基吡啶 (= DMAP)
文献
- 1) Coupling of Challenging Heteroaryl Halides with Alkyl Halides via Nickel-Catalyzed Cross-Electrophile Coupling
- 2) Control of Redox-Active Ester Reactivity Enables a General Cross-Electrophile Approach to Access Arylated Strained Rings
- 3) Expanding the Medicinal Chemist Toolbox: Comparing Seven C(sp2)−C(sp3) Cross-Coupling Methods by Library Synthesis