Regio and diastereoselective synthesis of functionalized 2,3-dihydrofuro[3,2-c]coumarins via a one-pot three-component reaction

An efficient and straightforward synthesis of furo[3 2-c]coumarins via the one-pot three-component condensation of aromatic aldehydes 4-hydroxycoumarin and alpha-chloroketones in refluxing n-propanol is described Pyridine or a mixture of AcOH and AcONH4 was used as a basic catalyst (C) 2010 Elsevier Ltd All rights reserved