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Syntheses in the 1,2,4-Benzotriazine Series

✍ Scribed by JIU, JAMES; MUELLER, GEORGE P.

Book ID
126278199
Publisher
American Chemical Society
Year
1959
Tongue
English
Weight
671 KB
Volume
24
Category
Article
ISSN
0022-3263

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3-Methyl-1,2,4-benzotriazine and some of its derivatives were prepared in moderate yields (50-70%) via a reductive cyclization by a PtO 2catalyzed hydrogenation of the corresponding 2nitrophenylhydrazones of the pyruvic acid. The latter compounds were obtained in yields higher than 90% by reacting 2