https://pubs.rsc.org/en/Content/ArticleLanding/2024/SC/D3SC05977D
Direct synthesis of spirobifluorenes by formal dehydrative coupling of biaryls and fluorenones -...
A Tf2O-mediated, direct dehydrative coupling of (hetero)biaryls and fluorenones proceeds to form the corresponding spirobifluorenes in good to high yields. The...
directsynthesis