
RSC Advances, Journal Year: 2025, Volume and Issue: 15(19), P. 14881 - 14892
Published: Jan. 1, 2025
Biaryls exhibiting axial chirality have been extensively exploited in fields such as asymmetric catalysis, but the biaryl linkage typically consists of benzenoid aromatic rings, with non-benzenoid biaryls being scarce. Here we report first preparation a (non-benzenoid) 1,1'-biazulene-2,2'-diol ("1,1'-BAzOL") enantiopure form and determine its barrier to racemisation. Furthermore transformed into corresponding 2,2'-bis(phosphonate), thereby demonstrating functional group interconversion through cross coupling highlighting potential for diversification.
Language: Английский