Two-Step, One-Pot Ni-Catalyzed Neopentylglycolborylation and Complementary Pd/Ni-Catalyzed Cross-Coupling with Aryl Halides, Mesylates, and Tosylates
作者:Daniela A. Wilson、Christopher J. Wilson、Brad M. Rosen、Virgil Percec
DOI:10.1021/ol801972f
日期:2008.11.6
Two-step, one-pot neopentylglycolborylation of aryl iodides and bromides catalyzed by NiCl2(dppe) and NiCl2(dppp) is reported. Electron-rich and electron-deficient aryl neopentylglycolboronates were efficiently cross-coupled with aryl iodides, bromides, chlorides, mesylates, and tosylates by exploiting complementary Pd/Ni and Ni/Ni catalysis. The borylation route was further extended to a three-step
据报道,NiCl2(dppe)和NiCl2(dppp)催化芳基碘和溴化物的两步一锅新戊基乙二醇化反应。通过利用互补的Pd / Ni和Ni / Ni催化作用,富电子和缺电子的芳基新戊基乙二醇硼酸酯可以有效地与芳基碘,溴化物,氯化物,甲磺酸酯和甲苯磺酸酯交联。硼化途径通过原位镍催化的硼化和Pd介导的交叉偶联进一步扩展为三步一锅合成联芳基。