[1]Fuganti,Claudio;Serra,Stefano[JournalofChemicalResearch,Miniprint,1998,#10,p.2769-2782]
Title: A reinvestigation of 4-hydroxyindole-6-carboxylate synthesis from pyrrole-2-carboxaldehyde: a facile synthesis of indoles and indolizines.
Journal: The Journal of organic chemistry 20041001