Indium(III)-Catalyzed Reductive Bromination and Iodination of Carboxylic Acids to Alkyl Bromides and Iodides: Scope, Mechanism, and One-Pot Transformation to Alkyl Halides and Amine Derivatives
作者:Toshimitsu Moriya、Shinichiro Yoneda、Keita Kawana、Reiko Ikeda、Takeo Konakahara、Norio Sakai
DOI:10.1021/jo401529j
日期:2013.11.1
chlorides, and esters. Furthermore, this reducing system can be applied to the one-pot synthesis of alkyl halides and amine derivatives via the addition of nucleophiles. Insight into the reaction mechanism was gained via the time course of 1H and 13C NMR monitoring experiments and the corresponding stepwise reactions.
描述了高效的铟(III)催化的各种羧酸与1,1,3,3-四甲基二硅氧烷(TMDS)和溴或碘源的还原溴化或碘化。该官能团互变对几种官能团具有高耐受性,例如卤素,羟基,硝基,烯烃部分和硫化物部分。该铟催化体系也适用于醛化,酰氯和酯的还原碘化。此外,该还原体系可通过添加亲核试剂用于一锅法合成卤代烷和胺衍生物。通过1 H和13 C NMR监测实验的时间过程以及相应的逐步反应,可以深入了解反应机理。