The previously prepared 3-methyl-1,2,4-benzotriazine oxide is shown to be the 4-oxide 5.Synthesis and structores of other isomeric and related oxides are described.A modification of a previously described synthesis of 1,2,4-benzotriazines produces purer products in higher yields.
Atallah, Raja H.,Nazer, Musa Z.
p. 1793 - 1796
(2007/10/02)
INVESTIGATIONS IN THE SERIES OF ARYLHYDRAZONES OF SUBSTITUTED GLYOXYLIC ACIDS. XXVI. REACTION OF ETHYL CYANOPYRUVATE WITH ARENEDIAZONIUM SALTS
Ethyl sodiocyanopyruvate reacts with arenediazonium salts in a neutral medium (pH ca. 7) to form ethoxalylglyoxylonitrile arylhydrazones.The action of 15percent aqueous alkali or small amounts of sulfuric acid on the ethoxalylglyoxylonitrile arylhydrazone
Dubenko, R. G.,Konysheva, V. D.,Pel'kis, P. S.
p. 751 - 757
(2007/10/02)
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