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Synlett 1998; 1998(4): 431-433
DOI: 10.1055/s-1998-1678
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A Convenient Synthesis of 1,2,3-Triazole With Glyoxal

Katsumasa Harada* , Mizuho Oda, Akio Matsushita, Masashi Shirai
  • *Ube Research Laboratory UBE Industries, Ltd., 1978-5 Kogushi, Ube Yamaguchi 755, Japan
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Publication Date:
31 December 2000 (online)

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A new synthetic method of 1,2,3-triazole from glyoxal monohydrazone mono-oxime (1a) has been developed. 1a obtained by the thermal disproportionation of glyoxal bis-hydrazone (1b) and glyoxime (1c) was treated with acetic anhydride to give 2-acetyl-1,2,3-triazole, following alcoholysis gave 1,2,3-triazole in high yield.

1,2,3-triazole - glyoxal - glyoxal mono-hydrazone mono-oxime - 2-acetyl-1,2,3-triazole