127244-87-5Relevant academic research and scientific papers
CHEMISTRY OF 2-METHYLENE-2,3-DIHYDROFURAN-3-ONES. 2. 2-ALKOXYCARBONYLMETHYLENE-5-ARYL-4-HALO-2,3-DIHYDROFURAN-3-ONES: SYNTHESIS, STRUCTURE, AND PROPERTIES
Koz'minykh, V. O.,Koz'minykh, E. N.,Andreichikov, Yu. S.
, p. 862 - 865 (2007/10/02)
Reaction of 5-aryl-4-halo-2,3-dihydrofuran-2,3-diones with alkoxycarbonylmethylenetriphenylphosphoranes has given 2-alkoxycarbonylmethylene-5-aryl-4-halo-2,3-dihydrofuran-3-ones, which readily add halogens at the 2-exocyclic double bond, and on reaction with arylamines recyclize to give 2-hydroxy-2,3-dihydropyrrol-3-ones.
