Tungsten-Catalyzed Heterocycloisomerization Approach to 4,5-Dihydro-benzo[b]furans and -indoles

Ethan L. Fisher, Sidney M. Wilkerson-Hill, and Richmond Sarpong

 J. Am. Chem. Soc., 2012, 134 (24), pp 9946–9949 

DOI: 10.1021/ja3045647