... 1992 Printed in Great Britain W-4039/92 $3.00 + .OO Pergamon Press plc An Efficient Synthesis of Dihydrocoumarins James E. Pickett* and Paul C. Van Dot-t General Elechic Company Reszaxh and Development Schenectady, New York 12301 USA Key Words: synthesis; dihydrocoumarins Abstraetz Dihydrocoumarins are obtained in 40 to a% yields in one step by heating acrylic esters with an excess of a phenol in the presence of base catalysts. ...