N. Sato
1986
Citations
0
Influential Citations
7
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
The chlorination of 1-hydroxy-3-phenyl-2(1H)-pyrazinone with phosphoryl chloride proceeded to 5-chloro-3-phenyl-2(H)-pyrazinone or 2,5-dichloro-3-phenylpyrazine on heating to elevated temperatures. To define the mechanism of the novel formation, reactions of the parent or methyl-substituted 1-hydroxy-2(1H)-pyraz-inones with the same reagent were investigated.