Palladium-catalysed ortho-arylation of carbamate-protected phenols
作者:Robin B. Bedford、Ruth L. Webster、Charlotte J. Mitchell
DOI:10.1039/b916724m
日期:——
The carbamate (–O2CNR2) function is an excellent directing group for palladium-catalysed direct arylation reactions giving both protected or free mono- or di-substituted phenols, as well as an example of a dibenzopyranone, depending on coupling partners (aryl iodides or diaryliodonium salts) and conditions.
作者:Robin B. Bedford、Charlotte J. Mitchell、Ruth L. Webster
DOI:10.1039/c003074k
日期:——
Solvent-free reaction conditions facilitate a range of aromatic C-H functionalisations that traditionally require acidic or disfavoured solvents. These reactions include selective ortho- and meta-arylation of aryl carbamates and anilides and selective halogenation reactions.