51138-49-9Relevant academic research and scientific papers
Synthesis of Benzopyranoisoxazol-4-ones from 2-Substituted Chromone-3-carboxylic Esters. A Reinvestigation of the Reaction of 3-Acetyl-4-hydroxycoumarins with Hydroxylamine. Synthesis of 4-(2-Hydroxybenzoyl)isoxazol-5-ones
Chantegrel, Bernard,Nadi, Abdel Ilah,Gelin, Suzanne
, p. 4419 - 4424 (2007/10/02)
A convenient method for the synthesis of ethyl 2-substituted chromone-3-carboxylates by the condensation of o-acetoxyaroyl chlorides with β-keto esters is described.These chromones are converted into the corresponding 4H-benzopyranoisoxazol-4-on
