347405-67-8Relevant academic research and scientific papers
Competitive intramolecular nucleophilic aromatic substitution: A new route to coumarins
Alonso,Olmstead,Nantz,Kurth
, p. 639 - 640 (2001)
4-Hydroxy-3-(2′-pyridyl)coumarins (4) (R = 6-Cl, H, 6-NO2, 8-NO2) were prepared in moderate to good yields by the intramolecular nucleophilic aromatic substitution reaction of β-ketoesters (I) in refluxing xylenes; evidence for the r
