
Chemistry of Heterocyclic Compounds p. 825 - 830 (1991)
Update date:2022-08-10
Topics:
Parfenov, E. A.
Smirnov, L. D.
The reaction of 3-nitro-4-chlorocoumarin with thiolating agents in the presence of water leads to the formation of a mixture of 3-nitro-4-hydroxycoumarin, bis(3-nitro-4-coumarinyl) sulfide, and colored labile products of undetermined structure.The reaction path can be controlled by the choice of solvent, reagent ratio, and temperature regime and by the use of weakly basic additives.
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