Synfacts, Table of Contents Synfacts 2021; 17(08): 0862DOI: 10.1055/s-0040-1720766 Synthesis of Heterocycles Organocatalytic Approach to Chiral Spiro-Dihydropyranones (Pfizer) Contributor(s): Paul Richardson Recommend Article Abstract Buy Article Key words Key wordsMeldrum’s acid - organocatalysis - dihydropyranones - spiro compounds Full Text