Abstract
Cesium carbonate is a type of alkali carbonate salt having a remarkable number of applications and has been demonstrated to be a mild inorganic base in organic synthesis. It has received much attention for its utility in
C
,
N
,
O
alkylation and arylation reactions. Cesium carbonate not only promotes successful carbonylation of alcohols and carbamination of amines, but also suppresses common side reactions traditionally encountered with other protocols. It is used also in six-membered annulation, intramolecular and intermolecular cyclizations, Suzuki coupling, aza-Henry, nucleophilic substitution, cross coupling and different cycloaddition reactions.