916987-99-0Relevant academic research and scientific papers
Novel fluorinated chromones
Saloutin, V. I.,Skryabina, Z. E.,Bazyl', I. T.,Chupakhin, O. N.
, p. 37 - 42 (1993)
The self-condensation of ethyl pentafluorobenzoylacetate leads to the formation of 3-pentafluorophenyl-1H-isopyrono-6,7,8,9-tetrafluorochromone in 37percent yield.On hydrolysis, this gave 2-pentafluorobenzoylmethyl-5,6,7,8-tetrafluorochromone.Other
Synthesis of 2(3)-ethoxycarbonyl-5,6,7,8-tetrafluorochromones
Saloutin, V. I.,Skryabina, Z. E.,Bazyl, I. T.,Chupakhin, O. N.
, p. 322 - 325 (2007/10/02)
The hitherto unknown ethyl pentafluorobenzoylpiruvate was prepared by condensing pentafluoroacetophenone with diethyl oxalate.Intramolecular cyclization of this ester or of its copper(II) chelate, as well as of ethyl 2-(ethoxymethylene)pentafluorobenzoyla
