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.
K. C. Majumdar, S. Samanta, I. Ansary and B. Roy, RSC Adv., 2012, 2, 2137 DOI: 10.1039/C2RA00820C
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