An unusual one-pot synthesis of 3-benzoylcoumarins and coumarin-3-carbaldehydes from 2-hydroxybenzaldehydes under esterification conditions
Abstract
Synthesis of 3-benzoylcoumarins and coumarin-3-carbaldehydes has been achieved in moderate to good yields (31–83%) by the reaction of easily available 2-hydroxybenzaldehydes and phenylpropiolyl chloride/propiolyl chloride under esterification condition.