A novel synthesis of 4-hydroxy-3-phenylcoumarins by titanium(III)-mediated reductive C-C bond formation

Article abstract of DOI:10.1055/s-1993-25808

4-Hydroxy-3-phenylcoumarins (4-hydroxy-3-phenyl-2H-1-benzopyran-2-ones) were readily synthesized in two steps by the titanium(III)-mediated reaction of methyl benzoylformate and substituted salicylaldehydes followed by lactonization, under acidic conditio