Heterocyclic Synthesis with Malonyl Dichloride. Part 13. 6-Chloro-4-hydroxy-2-oxypyran-3-carboxanilides from N-Sulphinylanilines and Further Reactions of Malonyl Dichloride with Thiocyanates
N-Sulphinylanilines react with malonyl dichloride to give 6-chloro-4-hydroxy-2-oxopyran-3-carboxanilides with loss of the sulphoxide moiety as thionyl chloride.Milder conditions and electron-withdrawing substituents do not alter the course of the reaction of thiocyanates with malonyl dichloride to give 2-substituted-thio-7-chloro-4H,5H-pyranooxazine-4,5-diones.
Al-Ajely, Mohammed S.,Al-Rawi, Jasim M. A.,Elvidge, John A.
p. 1575 - 1578
(2007/10/02)
More Articles about upstream products of 83196-25-2