4-Bromo-5-fluoro-2-methylaniline → 5-Bromo-4-fluoro-7-methyl-1h-benzotriazole

Beteiligte Stoffe

Reaktionsschritte

2-Amino-3-(5-bromo-4-fluoro-7-methyl-2H-benzotriazol-2-yl)-2-methylpropionitrile [1.3 g, Rf=0.2 (1:1 EA/heptane)] was prepared using a procedure similar to that described in Example 1, part a and b, except starting from 5-bromo-4-fluoro-7-methyl-1H-benzotriazole. 5-Bromo-4-fluoro-7-methyl-1H-benzotriazole (4 g, 85%) was prepared using a procedure similar to that described in Example 11, part a, except starting from 4-bromo-3-fluoro-6-methyl-2-nitroaniline. 4-Bromo-3-fluoro-6-methyl-2-nitroaniline (6.1 g) was prepared using a procedure similar to that described in Example 39, part a, b and c, except starting from 4-bromo-5-fluoro-2-methylaniline (10 g).

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