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Triazènes et benzotriazines dérivés de sucres

✍ Scribed by Jean M. J. Tronchet; Faranak Rachidzadeh

Publisher
John Wiley and Sons
Year
1979
Tongue
German
Weight
477 KB
Volume
62
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Sugar triazenes and benzotriazines

Several triazenylsugars have been prepared, generally in good yields, by treating an amino sugar with a substituted benzenediazonium salt. The triazenylsugars bearing a hydrogen atom on the triazenyl group are acetylated on the nitrogen atom closest to the glycosyl moiety (N(1)), even when the proton exchanged sites between N(1) and N(3). When an acetyl or a methoxycarbonyl group was present in the ortho position of the benzene ring cyclization took place leading to a 3,4‐dihydro‐4‐methylidene‐1,2,3‐benzo[d]triazine or a 3,4‐dihydro‐1,2,3‐benzo[d]triazin‐4‐one respectively.

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