101536-89-4Relevant articles and documents
Conversion of Some Δβ,γ-Butenolides and 5-Oxo-2-pyrrolines into Thiono Derivatives
Hashem, A. I.,El-Kousy, S. M.,El-Torgoman, A.,Salama, G. M.
, p. 875 - 876 (2007/10/02)
α-Arylidene-γ-aryl-Δβ,γ-butenolides (I) react with phosphorus pentasulphide in dry xylene to give 3-arylidene-5-aryl-2,3-dihydrofuran-2-thiones (III).A similar reaction of 2-aryl-4-benzylidene-5-oxo-2-pyrrolines (II) with phosphorus pentasulphi