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1H-Benzimidazole,5-fluoro-4-nitro-(9CI) synthesis

2synthesis methods
-

Yield:391906-63-1 56% ,391906-61-9 30%

Reaction Conditions:

with sulfuric acid;nitric acid at 20; for 1 h;

References:

Shibata;Das;Harada;Takeuchi;Bando [Synlett,2001,# 11,p. 1755 - 1758]