1418029-14-7Relevant articles and documents
Improved one-pot synthesis of 1-aryl-3-trifluoroacetyl-1H-pyrroles under Swern oxidation
Zanatta, Nilo,Aquino, Estefaniada C.,Da Silva, Fabio M.,Bonacorso, Helio G.,Martins, Marcos A. P.
, p. 3477 - 3482,6 (2012/12/12)
This study describes an improved one-pot, four-step synthesis of a new series of 1-aryl-3-trifluoroacetyl pyrroles from the reaction of 3-trifluoroacetyl-4,5-dihydrofuran with arylamines, giving 1,1,1-trifluoro-3-(2- hydroxyethyl)-4-arylamino-3-buten-2-ones, which were directly submitted to Swern oxidation to furnish 1,1,1-trifluoro-3-(2-ethanal)-4-arylamino-3-buten-2-ones. Subsequent intramolecular cyclization of the corresponding enaminoaldehydes followed by aromatization rendered the title compounds in a 30 to 56% overall yield.