Mathew, Paulson; Asokan, CV
(Elsevier, 2005-01-17)
α-Oxoketene-N,S-acetals, prepared by the reaction of alkyl glycinates with β oxodithiocarboxylates followed by alkylation, underwent cyclization in the presence of the Vilsmeier reagent to afford alkyl 3-aryl-4-formyl-5- ...