Enantioselective Cross-Coupling of <i>meso</i>-Epoxides with Aryl Halides
作者:Yang Zhao、Daniel J. Weix
DOI:10.1021/jacs.5b01909
日期:2015.3.11
The first enantioselective cross-electrophile coupling of aryl bromides with meso-epoxides to form trans-β-arylcycloalkanols is presented. The reaction is catalyzed by a combination of (bpy)NiCl2 and a chiral titanocene under reducing conditions. Yields range from 57 to 99% with 78–95% enantiomeric excess. The 30 examples include a variety of functional groups (ether, ester, ketone, nitrile, ketal