作者:Damien Polet、Xavier Rathgeb、Caroline A. Falciola、Jean-Baptiste Langlois、Samir El Hajjaji、Alexandre Alexakis
DOI:10.1002/chem.200801879
日期:2009.1.19
We describe herein the development of the first iridium‐catalyzed allylic substitution using arylzinc nucleophiles. High enantioselectivities were obtained from the reactions, which used commercially available Grignardreagents as the starting materials. This methodology was also shown to be compatible with halogen/metal exchange reactions. Its synthetic potential is demonstrated by its application
作者:Khalid B. Selim、Yasumasa Matsumoto、Ken-ichi Yamada、Kiyoshi Tomioka
DOI:10.1002/anie.200904676
日期:2009.11.2
Gamma rules: The title reaction was achieved in a highly regioselective manner using aryl Grignardreagents with monodentate chiral N‐heterocyclic carbene–copper(I) catalyst to give diarylvinylmethanes with excellent enantiomeric excess in excellent yield (see scheme).