Synthesis · 2004 · 45 citations · 0 references
Medicinal ChemistryNatural Product SynthesisEffective RouteNatural SciencesOrganic ChemistryTert-butyl IsocyanideChemistryHeterocycle ChemistryPharmacologySynthetic ChemistryEnantioselective SynthesisDialkyl Acetylenedicarboxylates
An effective route to novel coumarines and 4H-chromenes is described. This involves the reaction of tert-butyl isocyanide and dialkyl acetylenedicarboxylates in the presence of 2-hydroxybenzaldehydes.