Cross-Coupling of Organolithium with Ethers or Aryl Ammonium Salts by C−O or C−N Bond Cleavage
作者:Ze-Kun Yang、Dong-Yu Wang、Hiroki Minami、Hiroyuki Ogawa、Takashi Ozaki、Tatsuo Saito、Kazunori Miyamoto、Chao Wang、Masanobu Uchiyama
DOI:10.1002/chem.201603436
日期:2016.10.24
and/or alkyllithium species reacted smoothly with aryl and/or benzyl ethers with cleavage of the inert C−O bond to afford cross‐coupled products, catalyzed by commercially available [Ni(cod)2] (cod=1,5‐cyclooctadiene) catalysts with N‐heterocyclic carbene (NHC) ligands. Furthermore, the coupling reaction between the aryllithium compounds and aryl ammonium salts proceeded under mild conditions with C−N
各种芳基,链烯基和/或烷基锂物种与芳基和/或苄基醚平稳反应,并通过惰性C-O键裂解,得到可商购的[Ni(cod)2 ]催化的交叉偶联产物(cod带有N-杂环卡宾(NHC)配体的= 1,5-环辛二烯)催化剂。此外,芳基锂化合物与芳基铵盐之间的偶联反应在[Pd(PPh 3)2 Cl 2 ]催化剂存在下,在温和条件下进行C-N键断裂。这些方法可以在一锅中对具有C N和C O键的芳烃进行选择性顺序官能化。