
TY  - JOUR
A1  - Rosevear, J 
A1  - Wilshire, JFK 
T1  - The reduction of some o-nitrophenylazo dyes with glucose: a general synthesis of 2-Aryl-2H-benzotriazole 1-oxides
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1982
VL  - 35
IS  - 10
SP  - 2089
EP  - 2093
KW  - 
UR  - https://doi.org/10.1071/CH9822089 
N2  - The reduction of some representative o-nitrophenylazo dyes in ethanolic alkali with glucose gives the corresponding 2-aryl-2H-benzotriazole 1-oxides in excellent yield. These 1-oxides are rapidly reduced to the parent benzotriazoles at room temperature by means of zinc dust/ethanolic alkali. This method provides a convenient preparation for 5-chlorobenzotriazoles, which are otherwise readily dechlorinated by zinc dust under more vigorous conditions. 
ER  -

