Tetrahedron

Synthesis and metallation of 2-(pyridyl) benzoic acids and ethyl 2-(pyridyl) benzoates: a new route to azafluorenones

AS Rebstock, F Mongin, F Trécourt, G Quéguiner

Index: Rebstock, Anne-Sophie; Mongin, Florence; Trecourt, Francois; Queguiner, Guy Tetrahedron, 2003 , vol. 59, # 27 p. 4973 - 4977

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Citation Number: 33

Abstract

Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The ring deprotonation of 2-(2- and 4-pyridyl)benzoic acids using lithium dialkylamides in THF at rt, and the in situ cyclization afforded 4- and 2-azafluorenones, respectively. 1-Azafluorenone was obtained from ethyl 2-(3-pyridyl)benzoate using a similar protocol.