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26861-23-4

6-Amino-1-methyl-1H-benzotriazole synthesis

3synthesis methods
25877-35-4 Synthesis
1-Methyl-6-nitro-1H-benzotriazole

25877-35-4
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6-Amino-1-methyl-1H-benzotriazole

26861-23-4
6 suppliers
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Yield:-

Reaction Conditions:

with stannous chloride in hydrogenchloride;

Steps:

70.A Preparation of 4-[(3-methyl-3H-benzotriazol-5-yl)hydrazono]-4H-pyrazole-3,5-diamine

A. 3-Methyl-5-nitrobenzotriazole (0.8 g) was reduced by SnCl2 (4.5 g) at 0° C. in 5 mL of conc. HCl. The pH of the reaction mixture was adjusted to basic and the mixture was extracted with EtOAc. The product, 5-amino-3-methylbenzotriazole (0.6 g), obtained after removal of the solvent, was used for the next reaction without further purification.

References:

US2003/60453,2003,A1