Studies on Pyrazines. Part 27. A New Deoxidative Nucleophilic Substitution of Pyrazine N-Oxides; Synthesis of Azidopyrazines with Trimethylsilyl Azide
Azidopyrazines bearing amino, methoxy and/or phenylgroups have been synthesized by reaction of pyrazine N-oxides with trimethylsilyl azide in the presence of diethylcarbamoyl chloride in refluxing acetonitrile.In most cases, the azidation occurs only at t
Sato, Nobuhiro,Miwa, Naoko,Hirokawa, Noriko
p. 885 - 888
(2007/10/02)
Studies on pyrazines. 12 [1]. N-oxidation of aminopyrazines with m-chloroperbenzoic acid
-
Sato
p. 1145 - 1146
(2007/10/02)
Some Reactions of Mono Substituted Pyrazine Monoxides
The reactions of the monoxides of propylpyrazine and phenylpyrazine with phosphoryl chloride or acetic anhydride were investigated.Except in the case of the reaction of 2-propylpyrazine 1-oxide with acetic anhydride, chlorination or acetoxylation occurred