129625-11-2Relevant articles and documents
Reaction de tetrafluoroborates de composes de Reissert avec des esters-α,β-ethyleniques gem-disubstitues. Rearrangement des derives du 3H-pyrrole obtenus en derives du 1H-pyrrole
Perrin, Sandrine,Monnier, Karin,Laude, Bernard
, p. 777 - 784 (2007/10/03)
3H-Pyrrole-3-carboxylic esters 8 have been prepared by reaction of suitably gem-disubstituted α,β-ethylenic esters 3 with two Reissert compound tetrafluoroborate salts.Prolonged heating in toluene converts the 3H-pyrroles 8 quantitatively into isomeric 4-